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Q:

The price of a car is increased by 25%, by how much percent, must the new price of this car be decreased to restore its original price ?

A) 20%	B) 24%
C) 21%	D) 25%

Answer & Explanation Answer: A) 20%

Explanation:

Suppose that the original price of the car = Rs. x

Then new price of the car

$= x + x \times \frac{25}{100} = \frac{5}{4} x R s$

To restore the original price, the new price must be decreased by

$\frac{5}{4} x - x = \frac{x}{4} R s$

So required percentage $= \frac{\frac{x}{4}}{\frac{5}{4} x} \times 100 %$

= 20%

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Filed Under: Percentage
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Q:

Which tennis player has authored a book titled "Unstoppable : My Life So Far" ?

A) Serena Williams	B) Maria sharapova
C) Sania Mirza	D) Venus Williams

Answer & Explanation Answer: B) Maria sharapova

Explanation:

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Filed Under: Books and Authors
Exam Prep: Bank Exams
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Q:

Which Bollywood Superstar has been honored with the Global Diversity Award 2017 in the British Parliament House ?

A) Salman Khan	B) Akshay Kumar
C) Shah Rukh Khan	D) Amir Khan

Answer & Explanation Answer: A) Salman Khan

Explanation:

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Filed Under: General Awareness

Q:

Manideep purchases 30kg of barley at the rate of 11.50/kg and 20kg at the rate of 14.25/kg. He mixed the two and sold the mixture in the shop. At what price per kg should he sell the mixture to make 30% profit to him ?

A) 15.84	B) 14.92
C) 13.98	D) 16.38

Answer & Explanation Answer: D) 16.38

Explanation:

Given, Manideep purchases 30kg of barley at the rate of 11.50/kg nad 20kg at the rate of 14.25/kg.

Total cost of the mixture of barley = (30 x 11.50) + (20 x 14.25)

=> Total cost of the mixture = Rs. 630

Total kgs of the mixture = 30 + 20 = 50kg

Cost of mixture/kg = 630/50 = 12.6/kg

To make 30% of profit

=> Selling price for manideep = 12.6 + 30% x 12.6

=> Selling price for manideep = 12.6 + 3.78 = 16.38/kg.

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Filed Under: Alligation or Mixture
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Q:

There are two mixtures of honey and water in which the ratio of honey and water are as 1:3 and 3:1 respectively. Two litres are drawn from first mixture and 3 litres from second mixture, are mixed to form another mixture. What is the ratio of honey and water in it ?

A) 111:108	B) 11:9
C) 103:72	D) None

Answer & Explanation Answer: B) 11:9

Explanation:

From the given data,

The part of honey in the first mixture = 1/4

The part of honey in the second mixture = 3/4

Let the part of honey in the third mixture = x

Then,

1/4 3/4

x

(3/4)-x x-(1/4)

Given from mixtures 1 & 2 the ratio of mixture taken out is 2 : 3

=> $\frac{\frac{3}{4} - x}{x - \frac{1}{4}} = \frac{2}{3}$

=> Solving we get the part of honey in the third mixture as 11/20

=> the remaining part of the mixture is water = 9/20

Hence, the ratio of the mixture of honey and water in the third mixture is 11 : 9 .

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Filed Under: Alligation or Mixture
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Q:

Who has been elected chair of the International Olympic Committee's ethics commission 2017 ?

A) Ban Ki-moon	B) Peter Thomso
C) Antonio Guterres	D) Amina J. Mohammed

Answer & Explanation Answer: A) Ban Ki-moon

Explanation:

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Filed Under: Sports

Q:

Nine different letters of alphabet are given, words with 5 letters are formed from these given letters. Then, how many such words can be formed which have at least one letter repeated ?

A) 43929	B) 59049
C) 15120	D) 0

Answer & Explanation Answer: A) 43929

Explanation:

Number of words with 5 letters from given 9 alphabets formed = $9^{5}$

Number of words with 5 letters from given 9 alphabets formed such that no letter is repeated is = $9 P_{5}$

Number of words can be formed which have at least one letter repeated = $9^{5} - 9 P_{5}$

= 59049 - 15120

= 43929

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Filed Under: Permutations and Combinations
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Q:

Manish completes a work in 20 days. After 8 days Sriram joined the work. In how many days will the work be completed ?

Statements :

I. Sriram takes twice the time than Manish to complete the work.
II. Sriram completes half the work in 15 days.

A) Statement I alone is sufficient to answer the question	B) Statement II alone is sufficient to answer the question
C) Either the statements I & II is sufficient to answer the question	D) Neither the statements I & II is sufficient to answer the question

Answer & Explanation Answer: C) Either the statements I & II is sufficient to answer the question

Explanation:

From statement I,

Time taken by Sriram to complete the work = 40 days

From statement II,

Time taken by Sriram to complete the wok = 30 days

So from both either by statement I or statement II we can find the time to complete the work.

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Filed Under: Statement and Assumptions
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