Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of [1 – tan (90 – θ) + sec (90 – θ)]/[tan (90 – θ) + sec (90 – θ) + 1]?

A) cot (θ/2) B) tan (θ/2)
C) sin θ D) cos θ
 
Answer & Explanation Answer: B) tan (θ/2)

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Q:

On dividing 256a2b2c2 by 64a2, we get

A) 2cxc B) 2bxb
C) 4 bxb.cxc D) 4
 
Answer & Explanation Answer: C) 4 bxb.cxc

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Q:

LCM of two co-prime numbers a and b is (a is greater than b):

A) a B) a+b
C) ab D) b
 
Answer & Explanation Answer: C) ab

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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

If tanA - cotA = x, then value of x is?

A) (1 + 2cos2A)/(sinA cosA) B) (sinA cosA)/(1 - 2cos2A)
C) (sinA cosA)/(1 + 2cos2A) D) (1 - 2cos2A)/(sinA cosA)
 
Answer & Explanation Answer: D) (1 - 2cos2A)/(sinA cosA)

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Q:

If x - 1/x = 1 then what is the value of 1x1x-1-1x+1+1x2+1-1x2-1?

A) ±√5 B) 2/5
C) ±2/√5 D) ±√5/2
 
Answer & Explanation Answer: C) ±2/√5

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Q:

If the cost price of 25 pens is equal to the selling price of 20 pens, then the profit percent is

A) 20% B) 25%
C) 15% D) 5%
 
Answer & Explanation Answer: B) 25%

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Filed Under: Profit and Loss
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Q:

Two trains are moving in the opposite direction at speed of 30 km/hr and 45 km/hr respectively, whose lengths are 450 m and 550 m respectively. What is the time taken (in seconds) by slower train to cross the faster train?

A) 48 B) 54
C) 62 D) 72
 
Answer & Explanation Answer: A) 48

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Q:

The difference between compound interest compoundedevery 6 months and simple interest after 2 years is 248.10.The rate of interest is 10 percent. Find the sum

A) 12000 B) 14000
C) 16000 D) 18000
 
Answer & Explanation Answer: C) 16000

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