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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

From a pack of 52 cards, 3 cards are drawn together atrandom, What is the probability of both the cards are king?

A) 1/5225 B) 1/5525
C) 5525 D) 1/525
 
Answer & Explanation Answer: B) 1/5525

Explanation:

n(S) = 52C3 = 132600/6 = 22100

n(E) = 4C3 = 24/6 = 4

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Filed Under: Permutations and Combinations

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Q:

A man spends in 8 months as much as he earns in 6 months. He saves Rs. 6000 in a year. His average monthly income is

A) Rs. 2400 B) Rs. 2000
C) Rs. 2150 D) Rs. 1800
 
Answer & Explanation Answer: B) Rs. 2000

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

How many numbers are there from 700 to 950 (including both) which are neither divisible by 3 nor by 7?

A) 107 B) 141
C) 144 D) 145
 
Answer & Explanation Answer: C) 144

Explanation:
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Filed Under: Numbers

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Q:

A student multiplied a number by 6/13 instead of 13/6. What is the percentage error in the calculation?

A) 369.44 percent B) 39.35 percent
C) 184.72 percent D) 78.7 percent
 
Answer & Explanation Answer: D) 78.7 percent

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

A train 500 m long, running at a uniform speed, passes a station in 35 sec. If the length of the platform is 221 m, the speed of the train in km/hr is

A) 721/35 B) 74.16
C) 24.76 D) 78.54
 
Answer & Explanation Answer: B) 74.16

Explanation:
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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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Q:

What is the value of cosec 11π/6?

A) -2/√3 B) √2
C) -2 D) -√2
 
Answer & Explanation Answer: C) -2

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If two successive discounts of 25% and 30% are given, then what will be the ratio of marked price to selling price?

A) 20 : 7 B) 40 : 21
C) 20 : 17 D) 40 : 33
 
Answer & Explanation Answer: B) 40 : 21

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

A starts a business, after 6 months B also join him with Rs.4500 and after 2 months of B’s joining C also join them with Rs.4500. If A gets approx. Rs 4900 out of total annual profit of Rs. 10,000 then find the approximate value of initial investment of A.

A) Rs.4800 B) Rs.4200
C) Rs.3600 D) Rs.4400
 
Answer & Explanation Answer: C) Rs.3600

Explanation:

Let initial investment of A = x
Ratio of profit A : B : C = 12 × x : 6×4500 :4×4500
A :B:C = x : 2250: 1500
Now ATQx/(x+2250+1500) = 4900/10000
solving this we get,x ≈ Rs 3600

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

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