6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Simplify $4 \frac{1}{3} + 2 \frac{1}{5} + 4 \frac{1}{4} = ?$

A) 10 47/60	B) 11 45/73
C) 11 47/36	D) 10 35/48

Answer & Explanation Answer: A) 10 47/60

Explanation:

The given equation is in Mixed fraction.

Now to solve this type of fractions,

$4 \frac{1}{3} + 2 \frac{1}{5} + 4 \frac{1}{4} = ? ? = (4 + 2 + 4) + (\frac{1}{3} + \frac{1}{5} + \frac{1}{4}) ? = 10 + \frac{47}{60} ? = 10 \frac{47}{60}$

Report Error

View Answer Report Error Discuss

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

9 3804

Q:

Find the probability of selecting 2 woman when four persons are choosen at random from a group of 3 men, 2 woman and 4 children.

A) 1/5	B) 1/7
C) 1/6	D) 1/9

Answer & Explanation Answer: C) 1/6

Explanation:

Out of 9 persons,4 can be choosen in $9 C_{4}$ ways =126.

Favourable events for given condition = $2 C_{2} * 7 C_{2}$ = 21.

So,required probability = 21/126 =1/6.

Report Error

View Answer Report Error Discuss

Filed Under: Probability

1 3803

Q:

The bankers discount and true discount on a sum of money due 8 months hence are Rs.120 & Rs.110 resp. Find the sum.

A) 1457	B) 1320
C) 1140	D) 1260

Answer & Explanation Answer: B) 1320

Explanation:

Sum = (B.D * T.D) / (B.D) -(T.D)

= (120 * 110) / (120 -110)

= 1320

Report Error

View Answer Report Error Discuss

Filed Under: Banker's Discount

2 3799

Q:

What is the square root of (√5 + 2)/(√5 – 2)?

A) √5 – √4	B) √5 + 2
C) 5 + √2	D) 7

Answer & Explanation Answer: B) √5 + 2

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Square Roots and Cube Roots
Exam Prep: Bank Exams

1 3796

Q:

12 men complete a work in 14 days. 5 days after they had started working, 3 men join them. How many more days will all of them take to complete the remaining work?

A) 5	B) 4
C) 3	D) 2

Answer & Explanation Answer: C) 3

Explanation:

Let p be the required number of days.

From the given data,

12 x 14 = 12 x 5 + (12+3) x p

12 x 14 = 12[5 + 3p]

14 = 5 + 3p

3p = 9

p = 3 days.

Hence, more 3 days all of them take to complete the remaining work.

Report Error

View Answer Report Error Discuss

Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO

2 3794

Q:

If the difference between the mode and median is 2, then the difference between the median and mean is:

A) 2	B) 1
C) 3	D) 4

Answer & Explanation Answer: B) 1

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Probability
Exam Prep: Bank Exams

33 3790

Q:

Assume that money can be invested at 8% compounded quarterly,which is larger,$2500 now or $3800 in 5 years?

A) 1557.29	B) 2557.29
C) 2567	D) 2457

Answer & Explanation Answer: B) 2557.29

Explanation:

First find the present value of $3800,then compare present values:

M = p(1+i/4)^4n

Report Error

View Answer Report Error Discuss

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

2 3787

Q:

A bucket contains a mixture of two liquids A and B in the proportion 7: 5. If 9 litres of the mixture is replaced by 9 litres of liquid B, then the ratio of the two liquid becomes 7: 9. How much of the liquid A was there in the bucket ?

A) 21 litres	B) 15 litres
C) 23 litres	D) 18 litres

Answer & Explanation Answer: A) 21 litres

Explanation:

Suppose the two liquids A and B are 7x litres and 5x litres respectivel Now, when 9 litres of mixture are taken out,

Quantitative Aptitude - Arithmetic Ability Questions

Quick Links