Quantitative Aptitude - Arithmetic Ability Questions

Q:

A = (x8  1)/(x4 + 1) and B = (y4  1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?

A) 96475 B) 98625
C) 92425 D) 89125
 
Answer & Explanation Answer: B) 98625

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If 4(x + 1) - 3 < 3 - x < 2x + 5; then the value of x is

A) -1 B) 0
C) -2 D) 3
 
Answer & Explanation Answer: B) 0

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Q:

If (cotAcotB - 1) / (cotB + cotA) = x, then the value of x is

A) cot(A - B) B) tan(A + B)
C) cot(A + B) D) tan(A - B)
 
Answer & Explanation Answer: C) cot(A + B)

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Q:

What is the value of 13313 + 729 - 5123

A) 15 B) 20
C) 30 D) 23
 
Answer & Explanation Answer: C) 30

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Exam Prep: Bank Exams , CAT

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Q:

Select the odd number from the given alternatives.

A) 23 B) 29
C) 37 D) 33
 
Answer & Explanation Answer: D) 33

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

A and B can complete a task in 20 days, B and C can complete it in 30 days while C and A can do the same task together in 24 days. How many days will each of and C take to complete the task individually? 

 

A) 50 and 54  B) 54 and 72 
C) 48 and 80  D) 56 and 64
 
Answer & Explanation Answer: C) 48 and 80 

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was

A) 45 B) 50
C) 55 D) 60
 
Answer & Explanation Answer: C) 55

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Q:

The ratio of present ages of Rangitha and Shaheen is 6:5. After 12 years the ratio of their ages will be 7:6. What is Rangitha's present age?

A) 60 B) 55
C) 72 D) 28
 
Answer & Explanation Answer: C) 72

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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