6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Example:$800 is invested at 7% for 6 years.Find the interest compounded anually?

A) 400.58	B) 300.58
C) 200.58	D) 100.58

Answer & Explanation Answer: A) 400.58

Explanation:

M=P(1+i)^n

I=M-P

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

0 3184

Q:

Three cars A, B and C started from a point at 5 pm, 6 pm and 7 pm respectively and travelled at uniform speeds of 60 km/hr, 80 km/hr and x km/hr respectively in the same direction. If all the three met at another point at the same instant during their journey, then what is the value of x?

A) 120	B) 110
C) 105	D) 100

Answer & Explanation Answer: A) 120

Explanation:

Distance covered by A till 6pm = 60 km

Distance covered by A till 7 pm = 120 km

Time taken by B to catch A = 60/(80-60 ) = 3 hrs

So A and B will meet at 6pm + 3 hrs = 9pm

Since we know that all three met at the same time

The time taken by C to cover 120 km

difference will be = 9pm –7pm = 2hrs

Therefore,(x –60 )*2 = 120x = 120 km/hr

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Filed Under: Time and Distance
Exam Prep: Bank Exams

0 3183

Q:

5% of a = b, then b% of 20 is the same as __________.

A) 20% of a/2	B) 50% of a/20
C) 50% of a/2	D) 20% of a/20

Answer & Explanation Answer: D) 20% of a/20

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

4 3180

Q:

In $∆ PQR$ , straight line parallel to the base QR cuts PQ at X and PR at Y. If PX:XQ = 5:6, then the XY:QR will be

A) 5:11	B) 6:5
C) 11:6	D) 11:5

Answer & Explanation Answer: A) 5:11

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams
Job Role: Bank Clerk

1 3179

Q:

K men agree to donate a gift of Rs. L to trust. If three men drop out how much more will each have to contribute towards the purchase of the gift ?

A) L / (k-3)	B) k / (L-3)
C) 2K / 3L-K	D) 3L / K(K-3)

Answer & Explanation Answer: D) 3L / K(K-3)

Explanation:

Intial contribution = L/K
After 3 men drop, then contribution =L/K-3
The amount more to pay in contribution = $\frac{L}{K - 3} - \frac{L}{K}$

= $\frac{3 L}{K (K - 3)}$

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

3 3171

Q:

Concept of Nehative Work

A tub can be filed in 20 minutes but there is a lekage in it which can empty the full tub in 60 minutes. In how many minutes it can be filled?

Answer

Filling efficiency = 5%

Emptying efficiency = 1.66%

Net efficiency = 5-1.66 = 3.33%

Therefore, Required time to fil the tub =100/3.33= 30 minutes

Workspace

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Subject: Time and Work

2 3170

Q:

Cost of 8 pencils, 5 pens and 3 erasers is Rs 111. Cost of 9 pencils, 6 pens and 5 erasers is Rs 130. Cost of 16 pencils, 11 pens and 3 erasers is Rs 221. What is the cost (in Rs) of 39 pencils, 26 pens and 13 erasers?

A) 316	B) 546
C) 624	D) 482

Answer & Explanation Answer: B) 546

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

5 3165

Q:

A and B started a partnership business investing in the ratio of 3 : 8. C joined them after 4 months with an amount equal to 3/4th of B. What was their profit (in Rs) at the end of the year if C got Rs 24,000 as his share?

A) 120000	B) 150000
C) 90000	D) 180000

Quantitative Aptitude - Arithmetic Ability Questions

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