Q:

If ${(x + \frac{1}{x})}^{2} = 3$ , then the value of $x^{3} + \frac{1}{x^{3}}$ is:

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

Answer & Explanation Answer: A) 0

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

If $4 x^{2} - 12 x + k$ is a perfect square, then the value of k is

A) 9	B) 12
C) 10	D) 14

Answer & Explanation Answer: A) 9

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Q:

If $a + \frac{1}{a} = 1,$ then the value of $\frac{a^{2} - a + 1}{a^{2} + a + 1}$ is $(a \neq 0)$

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

Answer & Explanation Answer: C) 0

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

From a point on a bridge across the river, the angles of depression of the banks on opposite sides of the river are 30° and 45° respectively. If the bridge is at a height of 2.5m from the banks, then the width of the river is (take √3 = 1.732)

A) 5.83m	B) 6.83m
C) 5.76m	D) 6.87m

Answer & Explanation Answer: B) 6.83m

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

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Q:

Which of the following was invented by Sir Humphry Davy?

A) Safety Pin	B) Steam Engine
C) Safety Lamp	D) X-Rays

Answer & Explanation Answer: C) Safety Lamp

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Filed Under: Inventions
Exam Prep: Bank Exams

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Q:

Which of the following is least likely to be an effect of global warming?

A) Increased frequency of hurricanes	B) Loss of fertile delta region as for agriculture
C) Decreased rate of photosynthesis in vegetation	D) Shrinking of the polar ice regions

Answer & Explanation Answer: C) Decreased rate of photosynthesis in vegetation

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Filed Under: General Science
Exam Prep: Bank Exams

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Q:

The major objective of INSAT series of satellites is to facilitate.

A) TV relay to remote areas	B) Mobile network in remote areas
C) Internet services	D) Mapping locations through GPS

Answer & Explanation Answer: A) TV relay to remote areas

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Filed Under: General Science
Exam Prep: Bank Exams

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Q:

What is the national fruit of Bangladesh?

A) Jackfruit	B) Mango
C) Litchi	D) Custard Apple

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