Q:

If two marbles are picked at random, what is the probability that either both are red or both are green?

A) 5/7	B) 5/14
C) 1/7	D) 1/14

Answer & Explanation Answer: C) 1/7

Explanation:

Required probability = $\frac{(10 + 3)}{91} = \frac{13}{91} = \frac{1}{7}$

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE
Job Role: Bank Clerk , Bank PO

3 1517

Q:

If $2 x - \frac{2}{x} = 1 (x \neq 0),$ then the value of $x^{3} - \frac{1}{x^{3}}$ is

A) 134	B) 138
C) 174	D) 178

Answer & Explanation Answer: B) 138

Explanation:

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

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Q:

The Gulf Stream is a poleword flowing current in the Atlantic Ocean. Which one of the following statements with regard to this is not correct?

A) It is similar to the Kuroshio current in the North Pacific Ocean.	B) It transports warm, tropical water towards polar region.
C) This current is a major factor in weather along the east coast of the USA.	D) The warm water of the Gulf Stream sustains the coral reefs of West Pacific Coast.

Answer & Explanation Answer: D) The warm water of the Gulf Stream sustains the coral reefs of West Pacific Coast.

Explanation:

All are correct except 4. The Kuroshio is a north-flowing ocean current on the west side of the North Pacific Ocean. It is similar to the Gulf Stream in the North Atlantic and is part of the North Pacific ocean gyre. Like the Gulf stream, it is a strong western boundary current. Gulf stream is not present in west Pacific coast

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Filed Under: World Geography
Exam Prep: Bank Exams

0 1516

Q:

Each of the following questions has four statements. Three are logically correct. Some of which may look factually absurd. Ignore this absurdity and look to the logical corrections. Choose the statement which is wrong or doubtful:-

A) All books can read. Some pencils are books. All pencils are clever.Therefore, all clever cannot read.	B) Some who fail are stupid. Some criminals are stupid. Therefore, all criminalsfail.
C) Some liar are thieves. All thieves are criminals. Therefore, some liars are criminals.	D) All that is given is black. Trees are green.Therefore, trees are black.

Answer & Explanation Answer: A) All books can read. Some pencils are books. All pencils are clever.Therefore, all clever cannot read.

Explanation:

There are all positive sentences so we cannot conclude negative sentence.

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Filed Under: English
Exam Prep: Bank Exams

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Q:

In the following question, out of the four alternatives, select the word similar in meaning to the word given.
Congregation

A) Discussion	B) Attention
C) Contraction	D) Assembly

Answer & Explanation Answer: D) Assembly

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

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Q:

Which of the following metal (shown by its symbol) is generally used for making filaments of bulb?

A) Fe	B) An
C) Ag	D) W

Answer & Explanation Answer: D) W

Explanation:

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Filed Under: General Science
Exam Prep: Bank Exams

2 1516

Q:

If the velocity of a body is halved its kinetic energy ________________.

A) become 4 times	B) becomes 1/4 th
C) is also doubled	D) becomes half

Answer & Explanation Answer: B) becomes 1/4 th

Explanation:

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Filed Under: Physics

1 1516

Q:

A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?

A) The wavelength of X-ray photon is less than the wavelength of visible radiation photon.	B) Both the photons have different energies.
C) The speeds of both the photons in vacuum are different	D) The frequency of X-ray photon is higher than the frequency of visible radiation photon.

Answer & Explanation Answer: C) The speeds of both the photons in vacuum are different

Explanation:

The speed of all the electromagnetic radiation are always same and equal to the numerical value 3 x 10^8m/sec.

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Filed Under: Physics
Exam Prep: Bank Exams

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