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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

ΔXYZ is right angled at Y. If m∠Z = 60°, then Cosec X =

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

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A dealer marks a washing machine for Rs. 7500, and allows a discount of 6% on it. Find the selling price

A) 6850 B) 7050
C) 7250 D) 6950
 
Answer & Explanation Answer: B) 7050

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

A watch having marked price as Rs 8400 is sold for Rs 5040 after two successive discounts. If the first discount is 25% then what is the second discount percentage?

A) 0.15 B) 0.2
C) 0.3 D) 0.25
 
Answer & Explanation Answer: B) 0.2

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Mr. Mike borrowed Rs. 8500 at 4% per annum C.I. The C.I. compounded annally for 2 years is :

A) Rs. 9139.6 B) Rs. 639.6
C) Rs. 9193.6 D) Rs. 693.6
 
Answer & Explanation Answer: D) Rs. 693.6

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

If 3x - 10 = -(2x + 5), then the numerical value of (x - 4)3 is

A) 27 B) 125
C) -125 D) -27
 
Answer & Explanation Answer: D) -27

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What would be the smaller of the two angles formed by the hour hand and the minute hand at 4:52 p.m?

A) 162 deg B) 164.5 deg
C) 165 deg D) 166 deg
 
Answer & Explanation Answer: D) 166 deg

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Filed Under: Clocks
Exam Prep: Bank Exams

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Q:

Average age of a team having 12 players is 23 years. If the age of the coach is also included, then the average age increases by 2 years. What is the age (inyears) of the coach?

A) 41 B) 47
C) 49 D) 51
 
Answer & Explanation Answer: C) 49

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Filed Under: Average
Exam Prep: Bank Exams

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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

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