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Q:

If cos 45° - ­ sec 30° = x, then value of x is

A) (1+√2)/2 B) (2√2­√3)/2
C) (√3­2√2)/√6 D) 4/√3
 
Answer & Explanation Answer: C) (√3­2√2)/√6

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

Of the 3 numbers whose average is 64, the first number is 1/3 times the sum of other 2. The first number is

A) 72 B) 32
C) 96 D) 48
 
Answer & Explanation Answer: D) 48

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Filed Under: Numbers
Exam Prep: Bank Exams

Q:

If 1/(1 + cosA) + 1/(1 ­- cosA) = x , then value of x is

A) 2sec2A B) 2cosecA
C) 2cosec2A D) 2secA
 
Answer & Explanation Answer: C) 2cosec2A

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If S divides PQ in the ratio 4:1 and length of QR is 15 cm,what is the length of ST?

A) 3 cm B) 5 cm
C) 12 cm D) 10 cm
 
Answer & Explanation Answer: C) 12 cm

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

A circle is inscribed in a square. If the length of the diagonal of the square is 14√2 cm, what is the area (in sq cm) of the circle?

A) 308 B) 462
C) 154 D) 616
 
Answer & Explanation Answer: C) 154

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

A shopkeeper by selling 9 Rolex watches, earns a profit equal to the selling price of 4 Rolex watches. His profit percentage is

A) 44.4 percent B) 88.8 percent
C) 80 percent D) 8.8 percent
 
Answer & Explanation Answer: C) 80 percent

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

Which of the following is not a quadratic equation?

A) 3x(x + 5) ­11 = 2x(x -­ 2) + 6 B) 4x(x + 3) + 7 = 4x(x -­ 11) + 9
C) x(x + 2) ­15 = x(2x -­ 5) + 11 D) 4x - 6x +­ 9 = 0
 
Answer & Explanation Answer: B) 4x(x + 3) + 7 = 4x(x -­ 11) + 9

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If a cone of radius 3.5 cm and height 9.6 cm is melted and constructed into a cylinder of the same radius, what will be the height of this cylinder? (Take π = 22/7)

A) 3.2 cm B) 6.4 cm
C) 1.6 cm D) 4.8 cm
 
Answer & Explanation Answer: A) 3.2 cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams