6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A Shopkeeper sells two articles at Rs.1000 each, making a profit of 20% on the first article and a loss of 20% on the second article. Find the net Profit or loss that he makes?

A) 4%	B) 5%
C) 6%	D) 8%

Answer & Explanation Answer: A) 4%

Explanation:

SP of first article = Rs.1000

Profit = 20%

$C P = S P x \frac{100}{100 + P %} = R s . \frac{2500}{3}$

SP of Second Article = Rs.1000

Loss = 20%

$C P = S P x \frac{100}{100 - L %} = R s . 1250$

So, Total SP = Rs.2000; Total CP = Rs.6250/3

As the CP is more than SP, he makes a loss.

Loss = CP - SP = (6250/3) - 2000 = Rs.(250/3)

So, Loss Percent = Lossx100/CP = 4%

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

79 38433

Q:

To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of bucket is reduced to two-fifth of its present ?

A) 52.5	B) 62.5
C) 72.5	D) 82.5

Answer & Explanation Answer: B) 62.5

Explanation:

Let the capacity of 1 bucket = x.

Then, capacity of tank = 25x.

New capacity of bucket = (2/5)x

$\therefore$ Required no of buckets = 25x/(2x/5) = 62.5

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Filed Under: Simplification

49 38344

Q:

Two trains are running in opposite directions in the same speed. The length of each train is 120 meter. If they cross each other in 12 seconds, the speed of each train (in km/hr) is

A) 42	B) 36
C) 28	D) 20

Answer & Explanation Answer: B) 36

Explanation:

Distance covered = 120+120 = 240 m

Time = 12 s

Let the speed of each train = v. Then relative speed = v + v = 2v

2v = distance/time = 240/12 = 20 m/s

Speed of each train = v = 20/2 = 10 m/s

= 10 × 36/10 km/hr = 36 km/hr

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Filed Under: Problems on Trains

78 38342

Q:

A and B began business with Rs.3000 and Rs.4000 after 8 months, A withdraws Rs.1000 and B advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of A ?

A) Rs. 240	B) Rs. 75
C) Rs. 125	D) Rs. 354

Answer & Explanation Answer: A) Rs. 240

Explanation:

The ratio of A & B investments = (3x8 + 2x4):(4x8 + 5x4)

=> 8:13

=> 8/21 x 630 = 240.

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

16 38303

Q:

If X : Y : Z = 3 : 4 : 5, then what will be the ratio of (X/Y) : (Y/Z) : (Z/X)?

A) 5 : 4 : 3	B) 30 : 40 : 27
C) 45 : 48 : 100	D) 20 : 15 : 12

Answer & Explanation Answer: C) 45 : 48 : 100

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

4 38275

Q:

Two dice are thrown together .What is the probability that the sum of the number on the two faces is divided by 4 or 6.

A) 7/18	B) 14/35
C) 8/18	D) 7/35

Answer & Explanation Answer: A) 7/18

Explanation:

Clearly, n(S) = 6 x 6 = 36
Let E be the event that the sum of the numbers on the two faces is divided by 4 or 6.
Then,E = {(1,3),(1,5),(2,2),(2,4),(2,6),(3,1),(3,3),(3,5),(4,2),(4,4),(5,1),(5,3),(6,2),(6,6)}
n(E) = 14.
Hence, P(E) = n(E)/n(S) = 14/36 = 7/18

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Filed Under: Probability

105 38270

Q:

In the following question, select the odd letter/letters from the given alternatives.

A) CGJ	B) IMQ
C) OSW	D) JNR

Answer & Explanation Answer: A) CGJ

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 38230

Q:

The sum of a fraction and its reciprocal is 113/56. Find the fraction.

A) 7/8	B) 5/8
C) 8/9	D) 3/7

Quantitative Aptitude - Arithmetic Ability Questions

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