6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If the true discount on sum due 2 years hence at 14% per annum be Rs. 168, the sum due is

A) Rs. 600	B) Rs. 768
C) Rs. 878	D) Rs. 668

Answer & Explanation Answer: B) Rs. 768

Explanation:

We know that,

P.W = 100×T.D/R×T

= 100×168/14×2

P.W = 600.

Now, required Sum = (P.W. + T.D.)

= Rs. (600 + 168)

= Rs. 768.

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

7 2510

Q:

Rs.7750 is divided among X, Y and Z such that 3 times of X's share is equal to 5 times of Y's share which is equal to 2 times of Z's share. What is the share (in Rs) of Z?

A) 4250	B) 3750
C) 3875	D) 4475

Answer & Explanation Answer: B) 3750

Explanation:

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

0 2509

Q:

If cosC + cosD = x, then value of x is

A) 2cos[(C+D)/2]cos[(C-D)/2]	B) 2sin[(C+D)/2]sin[(C-D)/2]
C) 2cos[(C+D)/2]sin[(C-D)/2]	D) 2sin[(C+D)/2]cos[(C-D)/2]

Answer & Explanation Answer: A) 2cos[(C+D)/2]cos[(C-D)/2]

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2509

Q:

At what time between 4 o'clock and 5 o'clock will the two hands of the clock be at the right angle to each other for the first time?

A) 58/11 min past 4 o'clock	B) 422/11 min past 4 o'clock
C) 60/11 min past 4 o'clock	D) 420/11 min past 4 o'clock

Answer & Explanation Answer: C) 60/11 min past 4 o'clock

Explanation:

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

14 2508

Q:

In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?

A) 901.54 ltr	B) 821.54 ltr
C) 719.64 ltr	D) 823.08 ltr

Answer & Explanation Answer: D) 823.08 ltr

Explanation:

Amount of pure milk= a(1 –b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 –48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

1 2508

Q:

If length of each side of a rhombus PQRS is 8 cm and ∠PQR = 120°, then what is the length (in cm) of QS?

A) 4√5	B) 6
C) 8	D) 12

Answer & Explanation Answer: C) 8

Explanation:

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Filed Under: Area

10 2507

Q:

Giving two successive discounts of 40% is equal to giving one discount of ________%.

A) 80	B) 96
C) 64	D) 72

Answer & Explanation Answer: C) 64

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

1 2505

Q:

A man gains 15% by selling a calculator for a certain price. If he sells it at the triple the price, then what will be the profit percentage?

A) 125	B) 175
C) 225	D) 245

Quantitative Aptitude - Arithmetic Ability Questions

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