6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

For x > 0, what is the minimum value of $x + \frac{x + 2}{2 x}$ ?

A) 1	B) 2
C) 2.5	D) 1.5

Answer & Explanation Answer: C) 2.5

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2512

Q:

If 3P/5 = 7Q/2 = 7R/5, then what is the ratio of p, Q and R respectively?

A) 3 : 2 : 5	B) 3 : 35 : 14
C) 5 : 7 : 5	D) 35 : 6 : 15

Answer & Explanation Answer: D) 35 : 6 : 15

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2511

Q:

The value of $(\frac{1}{(p - n) (n - q)} + \frac{1}{(n - q) (q - p)} + \frac{1}{(q - p) (p - n)}) i s$

A) 1	B) 0
C) p+q+n	D) 2np+q

Answer & Explanation Answer: B) 0

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0 2511

Q:

On a certain item profit is 150%. If the cost price increases by 25% what will be the new profit margin (in %)?

A) 25	B) 50
C) 100	D) 75

Answer & Explanation Answer: C) 100

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

0 2510

Q:

A carpenter can build a cupboard in 48 hours. After 12 hours he takes a break. What fraction of the cupboard is yet to be built?

A) 0.4	B) 0.5
C) 0.75	D) 0.25

Answer & Explanation Answer: C) 0.75

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Filed Under: Time and Work
Exam Prep: Bank Exams

1 2509

Q:

Ranjith can complete a task in 25 days while Anji can finish it in 20 days. They work together on the task for 5 days and then Ranjith leaves. In how many days will Anji finish the remaining work?

A) 15 days	B) 10 days
C) 11 days	D) 9 days

Answer & Explanation Answer: C) 11 days

Explanation:

Lcm of 25 and 20 is 100. So total work = 100 units
Ranjith can do 4 units per day while anju can do 5 units per day
They together complete 5 days of work i.e 9 x 5 = 45 units
The remaining 55 units of work is done by anju in 55/5 days (or) 11 days

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT

2 2506

Q:

The zeros of the cubic polynomial $2 x^{3} - x^{2} - 2 x + 1$ are a, b and c respectively. Find a+b+c :

A) -1	B) 2
C) 1	D) none

Answer & Explanation Answer: D) none

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

If $a$ - $\frac{1}{a}$ =7,then $a^{2}$ + $\frac{1}{a^{2}}$ =?

A) 54	B) 51
C) 53	D) 52

Quantitative Aptitude - Arithmetic Ability Questions

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