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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

If cosecA + cotA = x, then value of x is

A) 1/(cosecA - cotA) B) 1/(secA - tanA)
C) 1/(secA - cosA) D) 1/(sinA - cosA)
 
Answer & Explanation Answer: A) 1/(cosecA - cotA)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Find the HCF of 865 and 2595.

A) 25 B) 2595
C) 865 D) 5
 
Answer & Explanation Answer: C) 865

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

How many times the keys of a typewriter have to be pressed in order to write numbers from 121 to 1346?

A) 3675 B) 4018
C) 4021 D) 4025
 
Answer & Explanation Answer: D) 4025

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

1/(tanA + cotA) is equal to

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

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Giving two successive discounts of 40% is equal to giving one discount of ________%.

A) 80 B) 96
C) 64 D) 72
 
Answer & Explanation Answer: C) 64

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?

A) 901.54 ltr B) 821.54 ltr
C) 719.64 ltr D) 823.08 ltr
 
Answer & Explanation Answer: D) 823.08 ltr

Explanation:

Amount of pure milk= a(1 –b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 –48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

Chutki can bake 30 cakes in 15 hours. Chutki and Badki together can bake 90 cakes in 30 hours. How many cakes Badki can bake in 10 hours?

A) 75 B) 20
C) 10 D) 60
 
Answer & Explanation Answer: C) 10

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Filed Under: Time and Work
Exam Prep: Bank Exams , CAT

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Q:

What is the value of sin (630 + A) + cos A?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

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