KKStar

Trivia n°7: Mathematics Returns

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Game - Royal revolt 2

In game name- KrathosGE

Answers are as follows:-

1) 1st January, in 2022  would be wednesday

2) 49% of the original price

3)Value of X is 36

4) True - Coin is biased

5) $99.64

6) 0.00058

7) 22/7 is a rational number

8) 5950

9) Sometimes

10)33.75%

 

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NOTE: Bolded the answers for quicker reading.

1. From the given conditions, on 1st January 2022, it would be Wednesday

2. Since the price reduction on machined when Z bought the machine was 40%, Z must have got it for 0.6*850 which is $510. Now the price drop is from $1000, which is the original price of the machine, to $510, it can easily be said to be 49% reduction.

3. Seeing the pattern given in the sequence, whatever exponent is there on 2 is getting halved which we can see that on 4. For example, 2^6=4^3, half value of 6 is 3. So, applying same thing on 2^72 will give 4^36, as 36 is half the value of 72. Calculating the mathematical value of both also yields the same result.

4. The mentioned coin is definitely biased as the chances of getting heads is more than that of getting tails.

5. On January 25th due to rise by 6%, Apples share price will come to $106 rate as 6% of 100 is 6. Now 6% of 106 is 6.36 which is how much the rate of the mentioned shares is decreased. So, the closing price on January 26th will be $99.64.

6. The number would be 0.00058, which is with 2 significant figures.

7. 22/7 is a rational number as it is expressible in a form of fractions but Pi, which is ratio of circumference and diameter of a circle, is not.

8. 5950 is the least possible number of people in the given situation.

9. 3rd angle can be equal to other 2 in the given question but it can be only sometimes, which is only when the triangle is an equilateral triangle. For other cases, the triangle will be merely isosceles.

10.  Let the correct number of answers be x. So, now the number of incorrect answers will be 80-x, as maximum number of questions are 80. Now, for correct marks, he got 4x marks and for wrong ones, he got (78-x) marks penalty, as he missed 2 questions. Now equating both of these to the marks he got,

4x-(78-x)=57

Solving for x, we’ll get, 27. So out of 80 questions, the student answered 27 answers which makes it 33.75% accuracy.

IGN: t.ZZer

Game: Royal Revolt 2

 

 

 

Edited by tzzertzzer
Forgot to mention IGN and game I play

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Game: Royal Revolt 2
IGN: Vossa Magnificência

 

1.   Wednesday

2.    49%

3.    2⁷² = 4³⁶, x=36

4.    True

5.    99,64

6.    0,00059

7.    Yes

8.    5950

9.    Sometimes

10. He answered right 15 questions, so had 75% of correct answers.

Edited by tamycom

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: sanzyo

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game: Royal revolt 2

ign:V4LC3M1T0

1. Wednesday
2. 49%
3. 2⁷² = 4³⁶
4. True
5. 99,64
6. 0,00059
7. Yes
8. 5950
9. Sometimes
10. 15 right questions = 75% of correct answers.

 

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On 31/01/2017 at 10:04 AM, KKStar said:

1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: bellswinchester 

 

Edited by Bellswinchester

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: Nikl4uss 

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: Mrscarla 

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: Sr. Edemar 

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: CorbalaN

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Em 01/02/2017 em 7:11 AM, KKStar disse:

Por favor, poste seu nome no jogo eo jogo ou então recompensas não são dadas. ;)

1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

 

Game: Royal revolt 2

Ign: juliahelena

 

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Pri    4

IGN: Pri IV

 

1. Wednesday
2. 49%
3. 2⁷² = 4³⁶
4. True
5. 99,64
6. 0,00059
7. Yes
8. 5950
9. Sometimes
10. He answered right 15 questions, so had 75% of correct answers.

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: Brun0bbs 

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: - caos -

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1.    Wednesday
2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers. 

GAME: Royal Revolt 2
IGN: Zenakox

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1.    Wednesday

2.    49%
3.    2⁷² = 4³⁶
4.    True
5.    99,64
6.    0,00059
7.    Yes
8.    5950
9.    Sometimes
10.    15 right questions = 75% of correct answers

 

 

IGN: FrancoHA

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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?

366+365 = 731 days later --> 104 weeks and 3 days later --> Wednesday.

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.

850*0.6 = 1000*X --> X = 0.85*0.6 = 0.51 --> 49% less than original price.

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

x = 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.

100 -> 94 -> 1.06*94 = 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?

n is rational number if n = p/q with p,q integers, q not 0. 22, 7 are integers, 7 not 0. 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.

Angles a,b,c in triangle: a,b,c > 0; a+b+c = 180°. Without loss of generality: a=b --> 2a+c=180° --> c = 180°-2a. c = a <--> a = 180° - 2a <--> 180° = 3a <--> a = 60°. 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.

80/4 = 20 questions. right -> 4r, wrong -> -1*w, blank -> 0*b

Score s = 57 = 4r-w (I)

Questions q = 20 = r+w+b

b = 2 --> 18 = r+w --> w = 18-r (II)

(II) in (I): 57 = 4r-18+r <--> 5r = 57+18 = 75 <--> r = 15. --> w = 3

r/q = 15/20 = 75%.

 

 

tl;dr:

Wednesday, 49%, 36, True, 99.64$, 0.00058, Yes, 5950, Sometimes, 75%.

 

 

IGN: Heroesflorian

Game: Olympus Rising (and Royal Revolt, if multiple games are possible)

 

 

PS: More math next time plz! :wub:

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