Quantitative Aptitude - Arithmetic Ability Questions

Q:

The Simple Interest(SI) for 16 years on an amount at particular rate is Rs 10000. If the principal is doubled at an interval of every 4 years and the rate is tripled at every such in terval, find the new Simple Interest(SI)

A) 632100 B) 689620
C) 602260 D) 647500
 
Answer & Explanation Answer: D) 647500

Explanation:
Let New SI be X

10000/16 = X/4(1*1+2*3+4*9+8*27)

10000/16=X/4(1+6+36+216)

X=647500

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Filed Under: Simple Interest
Exam Prep: Bank Exams

1 1071
Q:

Present ages of Sai and Satheesh are in the ratio of 5:4 respectively. Three years hence, the ratio of their ages will become 11:9 respectively. What is Satheesh's present age in years?

A) 21 B) 24
C) 22 D) 23
 
Answer & Explanation Answer: B) 24

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

2 1071
Q:

What is the value of Cot 45° - (1/√3)Cosec 60°?

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

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If cos -225° = x, then the value of x is

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

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If tan ­-5π/3 = x, then the value of x is

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

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

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

A) 168 B) 198
C) 196 D) 191
 
Answer & Explanation Answer: D) 191

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

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Q:

If a number is reduced by 35%, then it becomes 416. By how much percent should the number be increased so that it become 876.8?

 

A) 33   B) 37  
C) 34.2   D) 38.4
 
Answer & Explanation Answer: B) 37  

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

cosA/(1 -­ sin A) is equal to

A) (secA -­ tanA) B) (secA + tanA)
C) √[(secA + tanA)] D) √[(secA -­ tanA)]
 
Answer & Explanation Answer: B) (secA + tanA)

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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