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Q:

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

What_can_run_but_never_walks1533298429.jpg image

Answer

A river which can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps.

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Subject: Word Puzzles Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

Support staff in the office of the president include

A) Repoters B) Cabinet members
C) Administrators D) All of the above
 
Answer & Explanation Answer: C) Administrators

Explanation:

Support staff in the office of the president include Administrators.

Support_staff_in_the_office_of_the_president_include1539257220.jpg image

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Filed Under: Indian Politics
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Q:

A box contains 2 blue balls, 3 green balls and 4 yellow balls. In how many ways can 3 balls be drawn from the box, if at least one green ball is to be included in the draw?

A) 48 B) 24
C) 64 D) 32
 
Answer & Explanation Answer: C) 64

Explanation:

Total number of balls = 2 + 3 + 4 = 9

Total number of ways 3 balls can be drawn from 9 = 9C3

No green ball is drawn = 9 - 3 = 6 = 6C3

Required number of ways if atleast one green ball is to be included = Total number of ways - No green ball is drawn

= 9C3 - 6C3

= 9x8x7/3x2  -  6x5x4/3x2

= 84 - 20

= 64 ways.

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

How many 4-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?

A) 60 B) 48
C) 36 D) 20
 
Answer & Explanation Answer: A) 60

Explanation:

Here given the required digit number is 4 digit.

It must be divisible by 5. Hence, the unit's digit in the required 4 digit number must be 0 or 5. But here only 5 is available.

x x x 5

The remaining places can be filled by remaining digits as 5 x 4 x 3 ways.

 

Hence, number 4-digit numbers can be formed are 5 x 4 x 3 = 20 x 3 = 60.

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Filed Under: Permutations and Combinations
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Q:

The strength of an electromagnet can be increased by

A) increasing the length of the coiled wire B) increasing current supply
C) increasing the number of turns D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The strength of an electromagnet can be increased by increasing the cross-sectional area, increasing the number of turns, increasing current supply, increasing the length of the coiled wire.

 

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Filed Under: Physics
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Q:

Emphasize most nearly means

A) Accentuate B) Calculate
C) Justify D) Demain
 
Answer & Explanation Answer: A) Accentuate

Explanation:

Emphasize means giving special importance or worth giving attention to in speaking or writing.

Here in the options, Accentuate is most nearly means Emphasize.

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Filed Under: English
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Q:

Which statement is true of the Berlin Conference?

A) The conference began with a dispute about the Congo River basin. B) The conference was convened by Portugal
C) Treaty of Berlin to divide up Africa among the 14 countries D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The Berlin Conference of 1884–85 was a meeting between European nations to create rules on how to peacefully divide Africa among them for colonization. The conference was convened by Portugal but led by Otto von Bismarck, chancellor of the newly united Germany. 

 

The 14 countries that attended included all the major European powers, as well as Russia, Turkey and the United States. The conference began with a dispute about the Congo River basin.Slavery was forbidden throughout Africa. The attendees agreed upon a principle of effective occupation by which rights over African colonies would be assessed.

 

Before the conference, about 80 percent of African territory was still in local hands. By 1902, European powers controlled 90 percent of Africa.

 

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Filed Under: World History
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Q:

Claude Bernard first recognized

A) plant stomata opening and closing to maintain homeostasis B) chemical reactions of enzymes
C) separate fluids outside and inside the cell D) feedback loops
 
Answer & Explanation Answer: A) plant stomata opening and closing to maintain homeostasis

Explanation:

Claud_Bernard1533194164.jpg image

 

Claude Bernard was a French physiologist, who first recognised plant stomata opening and closing to maintain homeostasis.

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Filed Under: Famous Personalities
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