Quantitative Aptitude - Arithmetic Ability Questions

Q:

The product of two numbers is 0.432. One of the numbers is 1.6. What is the other number?

A) 2.7 B) 0.027
C) 27 D) 0.27
 
Answer & Explanation Answer: D) 0.27

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams , CAT

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Q:

Average age of 6 boys is 14 years. Average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?

 

A) 12.7   B) 14.6
C) 19.3   D) 8.5
 
Answer & Explanation Answer: A) 12.7  

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

sin(A+B) -­ sin(A-­B) is equal to

A) 2sinAcosB B)  2cosAcosB
C) 2cosAsinB D) 2sinAsinB
 
Answer & Explanation Answer: C) 2cosAsinB

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Expand : S + 23

A) S3+3S2+12S+8 B) S3+3S2+6S+8
C) S3+6S2+12S+8 D) S3+6S2+6S+8
 
Answer & Explanation Answer: C) S3+6S2+12S+8

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If secA/(secA ­- 1) + secA/(secA + 1) = x, then x is

A) 2cosec2A B) 2sec2A
C) 2cosecA D) 2secA
 
Answer & Explanation Answer: A) 2cosec2A

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If P : Q : R = 6 : 7 : 8 and R : S = 3 : 5, then what is P : S?

A) 18:25 B) 9:20
C) 11:24 D) 16:45
 
Answer & Explanation Answer: B) 9:20

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If 1/(1 + cosA) + 1/(1 ­- cosA) = x , then value of x is

A) 2sec2A B) 2cosecA
C) 2cosec2A D) 2secA
 
Answer & Explanation Answer: C) 2cosec2A

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Exam Prep: Bank Exams

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Q:

The sum for 2 years gives a compound interest of Rs 3225 at 15% rate. Then sum is

A) 10000 B) 20000
C) 15000 D) 32250
 
Answer & Explanation Answer: A) 10000

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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