Q:

In a certain city, 5% of all the persons in town have unlisted phone numbers. If you select 100 names at random from that city's phone directory, how many people selected will have unlisted phone numbers?

Answer

Zero. You are selecting names from the list, so they are all listed.

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Subject: Math Puzzles

6 7097

Q:

Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?

A) K1k2/k1+k2	B) 2k1k2/k1+k2
C) K1+k2/k1k2	D) None

Answer & Explanation Answer: B) 2k1k2/k1+k2

Explanation:

We know that,

The equivalent K = $\frac{L 1 + L 2}{\frac{L 1}{K 1} + \frac{L 2}{K 2}}$

where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively.

But here L1 = L2 = L (say)

Then K = L+L/(L/K1 + L/K2) = $\frac{2 K 1 K 2}{K 1 + K 2}$

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Filed Under: Physics
Exam Prep: GATE , Bank Exams , AIEEE
Job Role: Network Engineer

12 7097

Q:

Kalbaisakhis or Norwesters originate in

A) Chhota Nagpur Plateau	B) Karnataka Coast
C) Coromandal Coast	D) Malwa plateau

Answer & Explanation Answer: A) Chhota Nagpur Plateau

Explanation:

They are carried eastwards to West Bengal and Assam by westerly winds

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Filed Under: Indian Geography

11 7096

Q:

Germany signed the Armistice Treaty on ____ and World War I ended

A) January 19, 1918	B) May 30, 1918
C) November 11, 1918	D) February 15, 1918

Answer & Explanation Answer: C) November 11, 1918

Explanation:

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Filed Under: General Awareness

20 7095

Q:

How many holes are in this shirt?

how_many_holes_are_there_in_this_shirt1542186605.jpg image

A) 4	B) 7
C) 8	D) 6

Answer & Explanation Answer: C) 8

Explanation:

There are 8 holes in this given shirt.

how_many_holes_are_there_in_this_t-_shirt11542267000.jpg image

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Filed Under: Logic Puzzles
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

34 7094

Q:

Which of the following is graphics solution for word processors?

A) Clip Art	B) Drop Cap
C) Word Art	D) All of the above

Answer & Explanation Answer: A) Clip Art

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams

3 7089

Q:

Which of the statements given below are correct?

A) Rafael Nadal won the Tennis 2017 French Open Men's Singles.

B) In 2017, Valentino Rossi raced in MotoGP for Ducati.

C) In 2017, Marc Márquez raced in MotoGP for Honda.

A) Only A	B) Only B
C) Both A and C	D) A, B and C

Answer & Explanation Answer: C) Both A and C

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

0 7085

Q:

An object at rest may have

A) Momentum	B) Potential energy
C) Velocity	D) Kinetic energy

Answer & Explanation Answer: B) Potential energy

Explanation:

An object at rest may have Potential energy.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

14 7084

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