Quantitative Aptitude - Arithmetic Ability Questions

Q:

The marked price of a helmet is 30% more than its cost price. If the helmet is sold for Rs 744 after a discount of Rs 36, then what will be the profit percentage?

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

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

Starting with 8000 workers, the company increases the number of workers by 5%, 10% and 20% at the end of first, second and third year respectively. The number of workers in the fourth yearwas

A) 10188 B) 11088
C) 11008 D) 11808
 
Answer & Explanation Answer: B) 11088

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

A,B and C together start a business. Three times the investment of A equals four times the Investment of B and the Capital of B is twice that of C. The ratio of share of each in the profit.

A) 8:3:6 B) 3:8:6
C) 3:6:8 D) 8:6:3
 
Answer & Explanation Answer: D) 8:6:3

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Filed Under: Partnership
Exam Prep: Bank Exams

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Q:

If 9x - [5(2x + 1)/2] = 9/2, then the value of x is?

A) 7/4 B) -7/4
C) 4/7 D) -4/7
 
Answer & Explanation Answer: A) 7/4

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of tan­ -240°?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

There is a 4% increase in volume when a liquid freezes to its solid state. The percentage decrease when solid melts to liquid again, is

A) 3 3/13% B) 4%
C) 4 1/13%  D) 3 11/13%
 
Answer & Explanation Answer: D) 3 11/13%

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

What is the simplified value of Sec ACot A + Tan A2 ?

A) 1 – cos2A B) 2sin2A
C) sec2A D) 0
 
Answer & Explanation Answer: A) 1 – cos2A

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Filed Under: Simplification
Exam Prep: CAT , Bank Exams , AIEEE

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Q:

A  field  can  be  reaped  by  12  men  or  18  women  in  14  days.  In  how  many  days  can  8  men  and  16 women reap it?

A) 26 days B) 24 days
C) 9 days D) 8 days
 
Answer & Explanation Answer: C) 9 days

Explanation:
12 men or 18 women can complete in 14 days
8 men and 16 women can complete in how many days
12men = 18 women (Comparing efficiencies)
1men = 18/12 = 1.5 women
8 men and 16 women = 12women + 16 women = 28 women
18 women completes in 14 days
1 woman completes in 14*18 days
28 women completes in (14*18)/28 days = 9 days
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Filed Under: Time and Work
Exam Prep: Bank Exams

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