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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

What is the sum of first 40 terms of 1 + 3 + 4 + 5 + 7 + 7 + 10 + 9 + ....?

A) 1010 B) 1115
C) 1030 D) 1031
 
Answer & Explanation Answer: C) 1030

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Q:

If l + m + n = 9 and l2+m2+n2 = 31, then the value of lm + mn + nl will be

A) 22 B) 50
C) 25 D) -25
 
Answer & Explanation Answer: C) 25

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Q:

A complete factorisation of x4 + 64 is

A) (x2 + 8)2 B) (x2 + 8)(x2 - 8)
C) (x2 - 4x + 8)(x2 -4x - 8) D) (x2 + 4x + 8)(x2 - 4x + 8)
 
Answer & Explanation Answer: D) (x2 + 4x + 8)(x2 - 4x + 8)

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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) 358 B) 853
C) 538 D) 240
 
Answer & Explanation Answer: D) 240

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Filed Under: Odd Man Out
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Q:

If cosec4A -­ cosec2A = x, then value of x is?

A) tan4A + tan2A B) cot4A + cot2A
C) cot4A -­ cot2A D) tan4A -­ tan2A
 
Answer & Explanation Answer: B) cot4A + cot2A

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Q:

If 5x + 1/x = 10, then x2 + 125x2 is equal to

A) 215 B) 335
C) 315 D) 235
 
Answer & Explanation Answer: B) 335

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Q:

If x = 222, y = 223, z = 225 then the value of x3 + y3 + z3 - 3xyz is

A) 4590 B) 4690
C) 4950 D) 4960
 
Answer & Explanation Answer: B) 4690

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Q:

To cover a distance of 225 km in 2.5 hours what should be the average speed of the car in meters/second?

A) 90 m/s B) 45 m/s
C) 50 m/s D) 25 m/s
 
Answer & Explanation Answer: D) 25 m/s

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Filed Under: Time and Distance
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