Aptitude and Reasoning Questions

Q:

Square of (3x – 5xy) is

A) 9x2 - 30x2y + 25x2y2 B) 9x2 - 15x2y + 25x2y2
C) 25x2 - 15x2y + 9x2y2 D) 25x2 - 30x2y + 9x2y2
 
Answer & Explanation Answer: A) 9x2 - 30x2y + 25x2y2

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Q:

If x2 + y2 + 6x + 5 = 4(x - y) then x - y is

A) 1 B) -1
C) 0 D) 4
 
Answer & Explanation Answer: A) 1

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Q:

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 1:4 and area of ΔADE is 6 sq cm, what is the ratio of area of ΔADE: area of quadrilateral BDEC?

A) 1:12 B) 1:6
C) 1:16 D) 1:24
 
Answer & Explanation Answer: D) 1:24

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Q:

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series:

8,24,12,?,18,54

A) 48 B) 36
C) 29 D) 21
 
Answer & Explanation Answer: B) 36

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Q:

If a - b = 4 and ab = -3, then what is the value of a3- b3?

A) 21 B) 28
C) 23 D) -20
 
Answer & Explanation Answer: B) 28

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Q:

If x2-2x+1=0, then the value of x4+1x4 is

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

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Q:

Select the related word/letters/numbers from the given alternatives:
3 : 243 :: 5 : ?

A) 125 B) 625
C) 3025 D) 3125
 
Answer & Explanation Answer: D) 3125

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Q:

Determine the value of 1r+1s when r3+s3=0 and r+s=6 ?

A) 0 B) 0.5
C) 1 D) 2
 
Answer & Explanation Answer: B) 0.5

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