Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find the odd word/letters/number pair from the given alternatives.

(A) Fire (B) Light (C) Gas (D) Water

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 31288
Q:

In an examination, a pupil's average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination ?

A) 8 B) 9
C) 10 D) 11
 
Answer & Explanation Answer: D) 11

Explanation:

Let the number of papers be x. Then, 63x + 20 + 2 = 65x or 2x = 22 or x = 11.

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Filed Under: Average

85 31265
Q:

Consider the figure shown below and choose the correct option for the ratio of PA:PB.

 

A) r1 : r2 (internal) B) r1 : r2 (external)
C) r2 : r1 (internal) D) r2 : r1 (external)
 
Answer & Explanation Answer: B) r1 : r2 (external)

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

2 31228
Q:

Choose the figure which is different from the rest three.

 

 

 

A) 1 B) 3
C) 2 D) 4
 
Answer & Explanation Answer: B) 3

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 31221
Q:

Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was Simran's share in the profit ?

A) 10110 B) 10500
C) 12000 D) 13000
 
Answer & Explanation Answer: B) 10500

Explanation:

Simran : Nanda = (50000 * 36) : (80000 * 30) = 3 : 4.

Simran's share = Rs. ( 24500 * 3/7)  =  Rs. 10500.

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Filed Under: Partnership

27 31077
Q:

If a + b + c = 13, a2+b2+c2=69 then find the ab + bc + ca :

A) 10 B) 30
C) 50 D) 70
 
Answer & Explanation Answer: C) 50

Explanation:

a+b+c2=a2+b2+c2+2ab+bc+ca

2ab+bc+ca=a+b+c2-a2+b2+c2=169-69=100=ab+bc+ca=50

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Filed Under: Simplification

53 31025
Q:

Bhajan Singh purchased 120 reams of paper at Rs 80 per ream. He spent Rs 280 on transportation, paid octroi at the rate of 40 paise per ream and paid Rs 72 to the coolie. If he wants to have a gain of 8 %, what must be the selling price per ream?

A) 90 B) 89
C) 87.48 D) 86
 
Answer & Explanation Answer: A) 90

Explanation:

Total investment = Rs. (120 * 80 + 280 + (40/100) * 120 + 72).
= Rs. (9600 + 280+48 + 72) = Rs, 10000.
Sell price of 120 reams = 108% of Rs. 10000 = Rs. 10800.
Sell Price per ream = Rs. [10800/120] = Rs. 90.

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Filed Under: Profit and Loss

58 31006
Q:

A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?

A) Rs.35 B) Rs.245
C) Rs.350 D) cannot be determined
 
Answer & Explanation Answer: D) cannot be determined

Explanation:

We need to know the S.I, principal and time to find the rate. Since the principal is not given, so data is inadequate.

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Filed Under: Simple Interest
Exam Prep: GRE

64 30993