Quantitative Aptitude - Arithmetic Ability Questions

Q:

Solve the following equation to find x: (x  2)2  36 = 0 : xεN

A) 4 B) 8
C) -4 D) -8
 
Answer & Explanation Answer: B) 8

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

0 1965
Q:

The number whose square is equal to the difference of the squares of 37 and 23 is:-

A) 45.09 B) 28.98
C) 47.09 D) 28
 
Answer & Explanation Answer: B) 28.98

Explanation:

372  232 =840 Required number =840 = 28.98

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1965
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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Filed Under: Simplification
Exam Prep: Bank Exams

0 1964
Q:

If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is

A) 4 B) 8
C) 12 D) 16
 
Answer & Explanation Answer: D) 16

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Filed Under: Percentage
Exam Prep: Bank Exams

1 1964
Q:

What is the simplified value of cosec Acot A + tan A2 ?

A) 2cos 2A B) 1 – sin2 A
C) sec2A D) secA tanA
 
Answer & Explanation Answer: B) 1 – sin2 A

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1964
Q:

If sec (3x – 20°) = cosec (3y + 20°), then what is the value of tan (x + y)?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1963
Q:

If x2+1x2 = 98, then x3+1x3 = ?

A) 970 B) 1030
C) -970 D) -1030
 
Answer & Explanation Answer: A) 970

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1963
Q:

If x = y + 2 then x3 -  y3 -  z3 is

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

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1963