KKStar

Trivia n°7: Mathematics Returns

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Hello guys and girls! I, KK Star, would be hosting a Trivia Event! Enjoy the gems, but before that answer the questions with precision :).

1. Suppose 1st January fell on a Sunday in the year 2020 (leap year), then which day of the week would 1st January fall on, in 2022?

2. A particular machine was sold to Business A for $850 even though the original price was $1000. Then after using it for 3 years, the machine was sold to Business Z at a 40% reduction from Business A's buying price. How much percentage is the selling price to Business Z lower than to the original price of the machine? Express your answer in % terms only.

3. 22 = 4; 24 = 4; 26 = 43. Going by that sequence, calculate the value of x : 272 = 4x.

4. A coin has 2/probability of getting heads whereas 1/3 probability of getting tails. Is the coin biased? State True or False.

5. Shares of Apple Inc. on the stock exchange fall by exactly 6% from $100.00 on January 25. Next day they rise exactly 6%. How much was the closing price of Apple Inc. on 26th January. Answer needs to be given correct to 2 decimal places.

6. The following number must be rounded off to 2 significant figures. 0.0005845.

7. The value of Pi is taken as 22/7 in fractions. Is 22/7  a rational number?

8. An investigation was set up where any people participated. The figure was 6,000 rounded to the nearest hundred. What is the lowest possible amount of people if the data is correct?

9. If two angles in a triangle are equal, will the 3rd angle be equal to the other two? State ALWAYS or SOMETIMES or NEVER.

10.The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to attempt only 2 questions. Answer the number of questions he got correct as a percentage of total number of questions.

They are certainly tricky, good luck! :) 

PS - Please do specify the game you play and the in-game name ;) 

The deadline is 5th February 2017 16:00 (GMT +1)

Edited by KKStar
Wrong time posted, corrected.

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Hello. Trying this for the fun of it.

Royal Revolt 2

IGN: Relf87

 

1. Suppose 1st January fell on a Sunday in the year 2020 (leap year), then which day of the week would 1st January fall on, in 2022?

Wednesday

2. A particular machine was sold Business A for $850 even though the original price was $1000. Then after using it for 3 years, the machine was sold to Business Z at a 40% reduction from Business A's buying price. How much percentage is the selling price to Business B lower than to the original price of the machine? Express your answer in % terms only.

49%

3. 22 = 4; 24 = 4; 26 = 43. Going by that sequence, calculate the value of x : 272 = 4x.

36

4. A coin has 2/probability of getting heads whereas 1/3 probability of getting tails. Is the coin biased? State True or False.

True

5. Shares of Apple Inc. on the stock exchange fall by exactly 6% from $100.00 on January 25. Next day they rise exactly 6%. How much was the closing price of Apple Inc. on 26th January. Answer needs to be given correct to 2 decimal places.

$99.64

6. The following number must be rounded off to 2 significant figures. 0.0005845.

0.00058

7. The value of Pi is taken as 22/7 in fractions. Is 22/7  a rational number?

Yes

8. An investigation was set up where any people participated. The figure was 6,000 rounded to the nearest hundred. What is the lowest possible amount of people if the data is correct?

5950

9. If two angles in a triangle are equal, will the 3rd angle be equal to the other two? State ALWAYS or SOMETIMES or NEVER.

SOMETIMES

10.The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to attempt only 2 questions. Answer the number of questions he got correct as a percentage of total number of questions.

75% (15 out of 20)

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5 hours ago, KKStar said:

Hello guys and girls! I, KK Star, would be hosting a Trivia Event! Enjoy the gems, but before that answer the questions with precision :).

1. Suppose 1st January fell on a Sunday in the year 2020 (leap year), then which day of the week would 1st January fall on, in 2022?

2. A particular machine was sold to Business A for $850 even though the original price was $1000. Then after using it for 3 years, the machine was sold to Business Z at a 40% reduction from Business A's buying price. How much percentage is the selling price to Business Z lower than to the original price of the machine? Express your answer in % terms only.

3. 22 = 4; 24 = 4; 26 = 43. Going by that sequence, calculate the value of x : 272 = 4x.

4. A coin has 2/probability of getting heads whereas 1/3 probability of getting tails. Is the coin biased? State True or False.

5. Shares of Apple Inc. on the stock exchange fall by exactly 6% from $100.00 on January 25. Next day they rise exactly 6%. How much was the closing price of Apple Inc. on 26th January. Answer needs to be given correct to 2 decimal places.

6. The following number must be rounded off to 2 significant figures. 0.0005845.

7. The value of Pi is taken as 22/7 in fractions. Is 22/7  a rational number?

8. An investigation was set up where any people participated. The figure was 6,000 rounded to the nearest hundred. What is the lowest possible amount of people if the data is correct?

9. If two angles in a triangle are equal, will the 3rd angle be equal to the other two? State ALWAYS or SOMETIMES or NEVER.

10.The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to attempt only 2 questions. Answer the number of questions he got correct as a percentage of total number of questions.

They are certainly tricky, good luck! :) 

PS - Please do specify the game you play and the in-game name ;) 

The deadline is 5th February 2017 16:00 (GMT +1)

1.wednesday

2.49%

3.36

4.true

5.99.64%

6.58

7.yes

8.5950

9.sometimes

ign:damirf

Edited by Damir

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IGN-THIS IS THE END 1.WEDNESDAY 2.49% 3.36 4.TRUE 5.99,64% 6.58 7.YES 8.5950 9.SOMETIMES 10.75%

 

Edited by lumia535
in game name THIS IS THE END,game ROYAL REVOLT 2

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IGN-an1l75

Royal Revolt 2

  1. On a Wednesday (3 days extra)
  2. Selling price to Z is 510, so 49% lower
  3. 36
  4. False. I see this as a trick question, a coin has no conscience so can't be biased.
  5. It's now $99.64
  6. 0.00058
  7. 22/7 is rational. Pii is irrational, but 22/7 isn't pii.
  8. 5950
  9. Sometimes, only when the two are 60 degrees the third one is also 60, in all other cases this isn't the case.
  10. There are 20 questions since 4*20 is 80. He didn't answer 2 questions, so he has 18 questions for the other results. He has to answer at least 15*4 correct to be over 57 and 15*4 + 3*-1 = 57. So 15 correct answers and 3 incorrect ones. 15/20 * 100% is 75%.
Edited by an1l75

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Game: Royal Revolt 2

IGN: Lord Barnot

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q1. Suppose 1st January fell on a Sunday in the year 2020 (leap year), then which day of the week would 1st January fall on, in 2022?

Response: Wednesday

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q2. A particular machine was sold Business A for $850 even though the original price was $1000. Then after using it for 3 years, the machine was sold to Business Z at a 40% reduction from Business A's buying price. How much percentage is the selling price to Business Z lower than to the original price of the machine? Express your answer in % terms only.

Response: 49%.

Indeed, Business Z’s buying price is equal to 850 - (850/100)*40 = 850 – 340 = $510. The reduction of Business Z’s buying price relative to the original prize is equal to 1000 – 510 = $490, in percentage (490/1000)*100 = 49%.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q3. 22 = 41 ; 24 = 42 ; 26 = 43. Going by that sequence, calculate the value of x : 272 = 4x.

Response:  x is equal to 36.

Indeed, 272 = 1.844674e+19 and 436 = 1.844674e+19

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q4. A coin has 2/3 probability of getting heads whereas 1/3 probability of getting tails. Is the coin biased? State True or False.

Response: True, the coin is biased.

If the coin is not biased the probabilities of getting heads and tails are both equal to 1/2.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q5. Shares of Apple Inc. on the stock exchange fall by exactly 6% from $100.00 on January 25. Next day they rise exactly 6%. How much was the closing price of Apple Inc. on 26th January. Answer needs to be given correct to 2 decimal places.

Response: $99.64.

Indeed, the closing price of Apple Inc. on 25th January is 100 – (100/100)*6 = 94, and the closing price of Apple Inc. on 26th January is 94+(94/100)*6 = 94 + 5.64 = $99.64

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q6. The following number must be rounded off to 2 significant figures. 0.0005845.

Response: 0.00058 (taking the floor or rounding towards minus infinity), 0.00059 (taking the ceiling or rounding towards plus infinity), 0.00058 (rounding to nearest).

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q7. The value of Pi is taken as 22/7 in fractions. Is 22/7  a rational number?

Response: Yes, it is.

In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q8. An investigation was set up where any people participated. The figure was 6,000 rounded to the nearest hundred. What is the lowest possible amount of people if the data is correct?

Response:  5,950.

All the numbers ranged from 5,950 to 6,049 are equal to 6000 if rounded to the nearest hundred. Thus, the lowest possible amount of people is 5,950.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q9. If two angles in a triangle are equal, will the 3rd angle be equal to the other two? State ALWAYS or SOMETIMES or NEVER.

Response: SOMETIMES.

Indeed, according to the isosceles triangle theorem, the two angles opposite the equal sides of an isosceles triangle are themselves equal, while if the third side is different then the third angle is different.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Q10.The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to attempt only 2 questions. Answer the number of questions he got correct as a percentage of total number of questions.

Response:  75%.

Indeed, the exam was comprised of a total of 20 questions (80 max score / 4 marks for correct answer = 20 questions). The student did not answered to 2 questions. In the remaining 18 questions, he gave 15 correct answers and 3 wrong answers scoring (15*4)–(3*1) = 60– 3 = 57. Therefore, the number of correct answer as a percentage of total number of questions is equal to: (15/20)*100 = 0.75 * 100 = 75.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Thanx KKStar for hosting this trivia!  :rolleyes:

Edited by LordBarnot

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1)Wensday

2) 49%

3) 36

4) true

5) 99.64$

6)0.00058

7) yes it is, but PI isn't

8) 5950

9) sametimes 

10) 75%

ign - mikado the fool 

alliance - Le Lions

game - Royal Revolt 2

Thanks for intresting quiz :)

 

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Game : Royal Revolt 2

IGN : HellRai2er

Ans1.      Wednesday

Ans2.      49%

Ans3.      36

Ans4.     True

Ans5.     $99.64

Ans6.     0.00058

Ans7.     Yes

Ans 8.    5,951

Ans9.     Sometimes

Ans 10.   75%

 

Ign : HellRai2er

RR2

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1.Wednesday

2.49 %

3.36

4.True

5.$99.64

6.0.00058

7.Yes

8.5951

9.Sometimes

10.75 %

IGN : Atd007

Royal Revolt 2

Edited by Ajesh
Forgot to write the game name

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Hello KKStar,

Thank you for the revival of the Trivia :).

Here my answers:

  1. Wednesday
  2. 49%
  3. 36
  4. True
  5. $99.64
  6. 0.00058
  7. Yes
  8. 5951
  9. Sometimes
  10. 75%

 

IGN: Akira II

Game: Royal Revolt II

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1. Wednesday

2. 49%

3. 36

4. True

5. $99.64

6. 0.00058

7. Yes

8. 5,951

9. Sometime

10. 75%

IGN : super_Newking

Edited by vkt

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Game: Royal Revolt 2

Name: Arrow-Flash

1.        Wednesday

2.           49%

3.           36

4.            true

5.            $99.64

6.            .00058

7.              yes

8.             5951

9.           sometimes

10.         75%

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Game:- Royal Revolt 2

Ign:- Avi Ahir 1

my Answers..

Ans1. Wednesday

Ans2. 49%

Ans3. 36

Ans4. True

Ans5. 💲99.64

Ans6. 0.00058

Ans7. Yes

Ans8. 5951

Ans9. Sometimes

Ans10. 75%

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Game : Royal revolt 2

IGN : Mithil k 

Ans 1. Wednesday 

Ans 2. 49%

Ans 3. 36

Ans 4. True 

Ans 5. $99.64

Ans 6. 0.00058

Ans 7. Yes 

Ans 8. 5951 

Ans 9. Sometimes 

Ans 10. 75%

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Game : Royal revolt 2

IGN : mithiljoshi97 

Ans 1. Wednesday 

Ans 2. 49%

Ans 3. 36

Ans 4. True 

Ans 5. $99.64

Ans 6. 0.00058

Ans 7. Yes 

Ans 8. 5951 

Ans 9. Sometimes 

Ans 10. 75%

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ANSWER 1 : Wednesday

ANSWER 2 : 49%

ANSWER 3 : 36

ANSWER 4 : True

ANSWER 5 : $99.64

ANSWER 6 : 0.00058

ANSWER 7 : Yes

ANSWER 8 : 5,951

ANSWER 9 : Sometimes

ANSWER 10 : 75%

 

IGN : sid448 , ALLIANCE : (TÜRK)

ROYAL REVOLT 2.

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Ans 1) Wednesday

Ans 2) 49%

Ans 3) 36

Ans 4) True

Ans 5) $99.64

Ans 6) 0.00058

Ans 7) Yes

Ans 8) 5951

Ans 9) Sometimes

Ans 10) 75%

 

Ign : LuckyGGOODD

RR2

Edited by LuckyGGOODD
by mistake i clicked on save without finishing my Ans... thanks and forgot to write RR2

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IGN: Edward the 7th

Game: Royal Revolt 2

 

Answers:

1.    Wednesday

 

2.    49% discount (selling price of $510)

3.    36. Actually we should look at 4 as 22 and then it’s always 1/2.

4.    False. A biased coin does not exist in reality, no matter what statistics it shows.

5.    $99.64

6.    0.00058

7.    22/7 is a Rational number and equals exactly 3.142857. Pi is Irrational.

8.    5950

9.    Sometimes

10.  75%. 15 Correct and 3 Mistakes.

 

And now for the alternative, funny, but still very true answers (Trying to get some more gems…):

1. Come on, 1st January 2022 will be a “Holiday” and a “Drinksday”. This I can tell even now.

2. By the rules of accounting, after 6 years of usage, any machine’s value should go to $0. If we take this as a calculating base, after 3 years the price should be at 50% of it’s buying price, meaning $425. Original list price is irrelevant. This is a total discount of 57.5%. Business Z has bought it for an exaggerated price of $510. No wonder they are a failure and need to buy second hand machines…

3. 272 = “ERROR”… Hmm…

4. A known fact. You can load a die, but you can’t bias a coin.

5. Yep, Apple is going down…

6. For student exams grades, 0.45 is considered as 0.5, therefore the grade will go up for 0.00059

7. An apple Pi is rational indeed. You can even eat it alive… You can’t eat 22/7 though.

8. The problem arise when some of the women there were pregnant. Then they should have been counted as 1.5 and the answer given would be wrong

9. In a human triangle, even if the couple’s angle is equal, the mistress will have a bigger angle anyway…

10. This teacher has a problem with elemental mathematics. He miscalculated the number of questions. Max grade should be 100.

 

Genie & Master alliance Rules!

 

Gems, come to me... :)

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