Quantitative Aptitude - Arithmetic Ability Questions

Q:

If a + b = ­ 8 and a2 + b2 = 34, then value of ab is

A) 30 B) 64
C) 98 D) 15
 
Answer & Explanation Answer: D) 15

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Q:

A man is running at the speed of 20 km/hr. What is time (in seconds) taken by man to cover one round of a circular garden of radius 350 metres?

A) 412 B) 336
C) 396 D) 376
 
Answer & Explanation Answer: C) 396

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Filed Under: Time and Distance
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Q:

A and B together do a job in 6.75 days and A could do the job in 9 days if he worked alone. How many days would B take to do the job if he worked alone?

A) 27 B) 18
C) 24 D) 21
 
Answer & Explanation Answer: A) 27

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Filed Under: Time and Work
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Q:

If x=8+215, then what is the value of x+1x?

A) 2√15 B) 3√5
C) (3√5+√3)/2 D) 3√2+3
 
Answer & Explanation Answer: C) (3√5+√3)/2

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Q:

2 sec2A is equal to

A) (1 - tanA)2 - (1 + tanA)2 B) √[(1 - tanA)2 + (1 + tanA)2 ]
C) √[(1 - tanA)2 - (1 + tanA)2] D) (1 - tanA)2 + (1 + tanA)2
 
Answer & Explanation Answer: D) (1 - tanA)2 + (1 + tanA)2

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Q:

The average of 6 consecutive integers is 15/2. What is the average of last three integers?

A) 8 B) 9
C) 17/2 D) 7
 
Answer & Explanation Answer: B) 9

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Filed Under: Average
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Q:

When a number is increased by 20, it becomes 116% of itself. What is the number?

A) 100 B) 250
C) 125 D) 400
 
Answer & Explanation Answer: C) 125

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Filed Under: Problems on Numbers
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Q:

The incomes of X and Y are in the ratio 5 : 6 and their expenditure are in the ratio 6 : 5. If X saves Rs 7000 and Y saves Rs 15000, then what will be the income (in Rs) of X?

 

A) 28000 B) 20000
C) 25000 D) 24000
 
Answer & Explanation Answer: C) 25000

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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