6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A person divided a sum of Rs. 17,200 into three parts and invested at 5%. 6% and 9% per annum simple interest. At the end of two years, he got the same interest on each part of money. What is the money invested at 9%?

A) Rs. 3,200	B) Rs. 4,000
C) Rs. 4,800	D) Rs. 5000

Answer & Explanation Answer: B) Rs. 4,000

Explanation:

Let sum invested @ 5% be P1, @ 6% be P2 then @ 9% =17200-(P1+P2)

So according to question

P1*5*2/100 = P2*6*2/100 or P1 = (6/5) P2

Also P2*6*2/100 = [17200-(P1+P2)]*9*2/100

Or 2 P2 = [17200–(11/5)P2] * 3

Or (2 + 33/5)P2 = 17200 * 3

P2 = 17200 * 3 * 5 / 43 = 6000

So P1 = 6/5 P2 = 7200

So Sum invested @ 9% = 17200–(6000+7200) = Rs 4000

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Filed Under: Simple Interest
Exam Prep: Bank Exams

1 3454

Q:

If 5th September 2008 was a Monday, what day of the week was 9th October 2008?

A) Saturday	B) Friday
C) Sunday	D) Monday

Answer & Explanation Answer: C) Sunday

Explanation:

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Filed Under: Calendar
Exam Prep: Bank Exams

21 3453

Q:

5 + 2 x 10 =

A) 70	B) 20
C) 25	D) 52

Answer & Explanation Answer: C) 25

Explanation:

According to BODMAS rule,

After multiplication only, addition is done.

Hence,

5 + 2 x 10 = 5 + 20 = 25.

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

4 3453

Q:

If x / y is an integer, which of the following statements need NOT always be true?

A) both x and y are integers	B) only x is a integer
C) both are negative	D) none

Answer & Explanation Answer: A) both x and y are integers

Explanation:

In case (A), x and y could, for example, both be equal fractions and x/y would be an integer.

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Filed Under: Numbers
Exam Prep: GRE

2 3451

Q:

How much water (in litres) must be added to 80 litres solution of milk and water containing 10% milk, so that it becomes a 5% milk solution?

A) 10	B) 20
C) 40	D) 80

Answer & Explanation Answer: D) 80

Explanation:

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

6 3448

Q:

The ratio of the members of blue to red balls in abag is constant. When there were 44 red balls, the number of blue balls was 36. If the number of blue balls is 54, how many red balls will be in the bag?

A) 68	B) 32
C) 64	D) 66

Answer & Explanation Answer: D) 66

Explanation:

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Filed Under: Permutations and Combinations
Exam Prep: Bank Exams

26 3448

Q:

Calculate the effective interest rate of a 10% annual rate compounded continuously.

A) 9.52%	B) 10.52%
C) 11.52%	D) 12.52%

Answer & Explanation Answer: B) 10.52%

Explanation:

E=e^i-1

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

0 3447

Q:

If 30% of 40% of X is 240, then what is the value of X?

A) 441	B) 2000
C) 1200	D) 1800

Quantitative Aptitude - Arithmetic Ability Questions

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