Quantitative Aptitude - Arithmetic Ability Questions

Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) Bismillah Khan B) C. V. Raman
C) Homi Jehangir Bhabha D) Vikram Sarabhai
 
Answer & Explanation Answer: A) Bismillah Khan

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Q:

Four pairs of words are given. Find the odd one out.

A) White : Snow B) Red : Blood
C) Brown : Sky D) Green : Grass
 
Answer & Explanation Answer: C) Brown : Sky

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Q:

If α and β are the roots of the equation x2+ x  1 = 0, then what is the equation whose roots are α5 and β5?

A) x2 + 7x – 1 = 0 B) x2 – 7x – 1 = 0
C) x2 – 11x – 1 = 0 D) x2 + 11x – 1 = 0
 
Answer & Explanation Answer: D) x2 + 11x – 1 = 0

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Q:

What is the value of sin(11π/6)?

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

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Q:

The diameter of a circle is 28 cm find its area?

A) 616 sq cm B) 308 sq cm
C) 154 sq cm D) 77 sq cm
 
Answer & Explanation Answer: A) 616 sq cm

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Filed Under: Area
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Q:

If sin(A/2) = x, then the value of x is

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

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Q:

An engineering student has to secure 25% marks to pass. He gets 56 and fails by 34 marks. Find the maximum marks.

A) 385 marks B) 360 marks
C) 410 marks D) 435 marks
 
Answer & Explanation Answer: B) 360 marks

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Filed Under: Percentage
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Q:

Mahmood can do a piece of work in 40 hours. If he is joined by Janaki who is 50% more efficient, in what time will they together finish the work?

A) 2 hours B) 6 hours
C) 16 hours D) 3 hours
 
Answer & Explanation Answer: C) 16 hours

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Filed Under: Time and Work
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