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Q:

If $x = \frac{4 \sqrt{ab}}{\sqrt{a} + \sqrt{b}}$ , then what is the value of $\frac{x + 2 \sqrt{a}}{x - 2 \sqrt{a}} + \frac{x + 2 \sqrt{b}}{x - 2 \sqrt{b}}$ ?

A) 0	B) 2
C) 4	D) 1

Answer & Explanation Answer: B) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If (x + y + z) = 12, xy + yz + zx = 44 and xyz = 48, then what is the value of $x^{3} + y^{3} + z^{3}$ ?

A) 104	B) 144
C) 196	D) 288

Answer & Explanation Answer: D) 288

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If $\frac{\sqrt{5 + x} + \sqrt{5 - x}}{\sqrt{5 + x} - \sqrt{5 - x}} = 3$ ,then what is the value of x ?

A) 5/2	B) 25/3
C) 4	D) 3

Answer & Explanation Answer: D) 3

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

A man gains 15% by selling a calculator for a certain price. If he sells it at the triple the price, then what will be the profit percentage?

A) 125	B) 175
C) 225	D) 245

Answer & Explanation Answer: D) 245

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

A group of boys has an average weight of 36 kg. One boy weighing 42 kg leaves the group and another boy weighing 30 kg joins the group. If the average now becomes 35.7 kg, then how many boys are there in the group?

A) 30	B) 32
C) 40	D) 56

Answer & Explanation Answer: C) 40

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Filed Under: Average
Exam Prep: Bank Exams

Q:

A shopkeeper allows 25% discount on the marked price of an article and he suffered a loss of 15%. What will be the profit percent if the article is sold at marked price?

A) 11.76	B) 12.12
C) 13.33	D) 14.28

Answer & Explanation Answer: C) 13.33

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

In the given figure, the length of arc BC of the given circle is 44 cm. If O is the centre of circle, then what is the radius (in cm) of the circle?

A) 7	B) 14
C) 28	D) 35

Answer & Explanation Answer: C) 28

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

Q:

A can do a piece of work in 6 days working 8 hours a day while B can do the same work in 4 days working 10 hours a day. If the work has to be completed in 5 days, so how many hours do they need to work together in a day?

A) 59/11	B) 48/11
C) 70/11	D) 65/11

Answer & Explanation Answer: B) 48/11

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Filed Under: Time and Work
Exam Prep: Bank Exams

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