6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The ratio of present ages of P and Q is 8 : 5. After 4 years their ages will be in the ratio 4 : 3 respectively. What will be the ratio of P’s age after 7 years from now and Q’s age now?

A) 3:2	B) 1:2
C) 2:1	D) 3:1

Answer & Explanation Answer: D) 3:1

Explanation:

Let the present age of P be 8x and Q be 5x After 4 years, P's age = 8x + 4 and Q's age = 5x + 4 8x+4/5x+4 = 4/3 24x+12 = 20x+16 => 4x = 4=> x = 1 Present age of P = 8 years Present age of Q = 5 years Required ratio = 15 : 5 = 3 : 1

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Filed Under: Problems on Ages

1 2542

Q:

Sunil and Gopal are partners in a business. Sunil invests Rs.20,000 for 9 months and Gopal invests Rs. 30,000 for 12 months. Find the share of Sunil from the total profit of Rs. 60,000.

A) Rs.15000	B) Rs.18000
C) Rs.25000	D) Rs.20000

Answer & Explanation Answer: D) Rs.20000

Explanation:

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Filed Under: Partnership
Exam Prep: Bank Exams

2 2540

Q:

1/8 as a decimal?

A) 0.125	B) 0.225
C) 0.325	D) 0.425

Answer & Explanation Answer: A) 0.125

Explanation:

1/8 to convert into decimal,

Find an equivalent fraction with a denominator of a power of 10.

In this case, we will use 1000.

$\frac{1}{8} x \frac{125}{125} = \frac{125}{1000}$

This can now be written as a decimal with 3 decimal places (because we have thousandths.

i.e, 0.125

Hence, $\frac{1}{8} as a decimal = 0.125$

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Filed Under: Decimal Fractions
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

9 2539

Q:

If 6 years are subtracted from the present age of Ayush and takes 25% of that then we get the present age of his only son. 4 years ago, his daughter’s age is 7 years more than his son. Sum of daughter’s present age and his wife’s present age is 10 years more than Ayush’s present age then find the present age of Ayush if average of present age of entire family is 30.25 yr?

A) 45 year	B) 50 year
C) 60 year	D) 40 year

Answer & Explanation Answer: B) 50 year

Explanation:

Let the present age of Ayush be x yr.

Present age of his son =

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Filed Under: Problems on Ages
Exam Prep: CAT , Bank Exams , AIEEE

5 2537

Q:

A car moves at a speed of 72 km/hr after repairing and moves at the speed of 54 km/hr before repairing. It covers X distance in 6 hours after repairing. How much time (inhours) will it take to cover 3X distance before repairing?

A) 20	B) 24
C) 18	D) 21

Answer & Explanation Answer: B) 24

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams , CAT

0 2537

Q:

If cos 45° - sec 60° = x, then the value of x is

A) (√3-4)/2√3	B) 1
C) (1-2√2)/√2	D) (√3+√2)/2

Answer & Explanation Answer: C) (1-2√2)/√2

Explanation:

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Filed Under: Simplification
Job Role: Bank Clerk

0 2536

Q:

Umar and Avinash started a partnership with investments of Rs. 10000 and Rs. 15000, respectively. But due to a financial emergency the latter had to withdraw his investment after 8 months. In what ratio should the profit of the first twelve months be shared among the duo?

A) 3:2	B) 2:3
C) 1:2	D) 1:1

Answer & Explanation Answer: D) 1:1

Explanation:

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Filed Under: Partnership
Exam Prep: Bank Exams

3 2535

Q:

If $4^{(x + y)} = 256 and {(256)}^{(x - y)} = 4$ , then what is the value of x and y?

A) 17/8, 15/8	B) 17/4, 15/4
C) 9/17, 15/17	D) 8/17, 8/15

Quantitative Aptitude - Arithmetic Ability Questions

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