Quantitative Aptitude - Arithmetic Ability Questions

Q:

The compound interest earned in two years at 8% per annum is Rs 4160. What is the sum (in Rs) invested?

A) 24000 B) 25000
C) 30000 D) 20000
 
Answer & Explanation Answer: B) 25000

Explanation:
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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

A  field  can  be  reaped  by  12  men  or  18  women  in  14  days.  In  how  many  days  can  8  men  and  16 women reap it?

A) 26 days B) 24 days
C) 9 days D) 8 days
 
Answer & Explanation Answer: C) 9 days

Explanation:
12 men or 18 women can complete in 14 days
8 men and 16 women can complete in how many days
12men = 18 women (Comparing efficiencies)
1men = 18/12 = 1.5 women
8 men and 16 women = 12women + 16 women = 28 women
18 women completes in 14 days
1 woman completes in 14*18 days
28 women completes in (14*18)/28 days = 9 days
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

4 hrs after a goods train passed a station, another train travelling at a speed of 72 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 8 hours. What is the speed of the goods train?

A) 48 km/hr B) 57.6 km/hr
C) 72 km/hr D) 38.4 km/hr
 
Answer & Explanation Answer: A) 48 km/hr

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Filed Under: Problems on Trains
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

A train is running at a speed of 116 kms/hr. The distance covered by the train in meters in 18 secs is

A) 900m B) 1160m
C) 508m D) 580m
 
Answer & Explanation Answer: D) 580m

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

2 1619
Q:

The marked price of a trouser is twice of the cost price. To earn 36% profit, what should be the value of discount (in percentage)?

 

A)  33 B)  32
C)  34 D)  36
 
Answer & Explanation Answer: B)  32

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

5 1619
Q:

Both S.I. and C.I. is calculated with a similar rate of 10% per annum on a sum of rupees. If C.I. is calculated yearly for two years, then for what period must S.I. be evaluated such that S.I. = C.I.?

A) 4.2 years B) 2.1 years
C) 1.1 years D) 1.4 years
 
Answer & Explanation Answer: B) 2.1 years

Explanation:

Let time period of S.I. be T years.

Then for a principal amount, say P,

ATQ, as, S.I. = C.I. for rate =10%p.a. and

time for C.I. = 2(P x 10 x T)/100 = P{[ (100+10)/100 ]2-1}T/10 = [ 110/100 ]2–1 = [(11/10)2–1] = (121-100)/100T/10 = 21/100T = 21/10 = 2.1 years

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

1 1619
Q:

A, B and C can finish a job working alone in 12, 8 and 24 days respectively. In how many days they can finish the job if they worked together?

A) 5 B) 6
C) 4 D) 3
 
Answer & Explanation Answer: C) 4

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Filed Under: Time and Work
Exam Prep: Bank Exams

3 1618
Q:

There are red (A), yellow(B) and green (C) tokens in a bag. A : B :: 3 : 8, B : C :: 6 : 13. A : B : C is given by

A) 9 : 24 : 52 B) 3 : 48 : 13
C) 3 : 8 : 13 D) 3 : 6 : 13
 
Answer & Explanation Answer: A) 9 : 24 : 52

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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