Bank Exams Questions

Q:

Two boxes contain 4 and 16 balls respectively. Two balls in the first box and four in the second, are black. If a box is chosen randomly and two balls are drawn at random from it, what is the
probability that at least one ball is black if the ball is not replaced?

A) 11/20 B) 43/120
C) 77/120 D) 9/20
 
Answer & Explanation Answer: C) 77/120

Explanation:

At least one black can be chosen in two ways from each box:
Now, probability of choosing at least one black ball from first box 

= 1/2 × [ (2C1× 2C1)/4C2 + 2C2/ 4C2 ]= 5/12

Probability of choosing at least one black ball from 2nd box
= 1/2 × [(4C1×12C1)/16C2 + 4C2/ 16C2] = 9/40

Final probability

= 5/12 + 9/40 = (50 + 27)/120 = 77/120

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Q:

Find the least number to be added to 1739 so that it is exactly divisible by 11.

A) 11 B) 2
C) 1 D) 10
 
Answer & Explanation Answer: D) 10

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

Gases used in normal welding?

A) Oxygen and Acetylene B) Acetylene and Nitrogen
C) Oxygen, Hydrogen and Acetylene D) Oxygen and Hydrogen
 
Answer & Explanation Answer: A) Oxygen and Acetylene

Explanation:

Normal Gas welding use oxygen-acetylene.

 

Depending on what materials you are welding, there are some more options that might be used.

For example - MIG/TIG use Argon, MAG use an argon-something mix.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Organisms need Nutrients in order to

A) Breaking down food B) Utilize chemical compounds
C) recycling D) None
 
Answer & Explanation Answer: A) Breaking down food

Explanation:

Nutrients are necessary for break down the food and supply energy to the organisms and to carry out essential life functions.

  • Important nutrients are Hydrogen, Carbon and Oxygen.

 

  • Some more important nutrients for plants are : Potassium, Sulphur, Nitrogen, Phosphorous, Calcium and Magnesium. 
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Which action is considered a primary function of State government?

A) supervising elected federal government officials B) regulating political parties and the media
C) organizing a local military to provide security D) enforcing laws regarding the public safety
 
Answer & Explanation Answer: D) enforcing laws regarding the public safety

Explanation:

The primary function of State government is enforcing laws regarding the public safety.

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Filed Under: Indian Politics
Exam Prep: Bank Exams , CAT
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Q:

A debit signifies a decrease in

A) revenues B) liability
C) owner's equity D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: Accounts Payable
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Everyone has it and no one can lose it. What is it?

A) Face B) Teeth
C) Hair D) Shadow
 
Answer & Explanation Answer: D) Shadow

Explanation:
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Q:

Ozone holes are more pronounced at the

A) Tropic of cancer B) Poles
C) Equator D) Tropic of capricorn
 
Answer & Explanation Answer: B) Poles

Explanation:
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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams
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