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Q:

What about Earth allows it to maintain bodies of water?

A) mountains B) tides
C) moderate tempatures D) comet crashes
 
Answer & Explanation Answer: C) moderate tempatures

Explanation:

The moderate temperatures allow Earth to maintain bodies of water into its normal state.

Changes in the bodies of water in terms of volume and structure would change due to the change in temperature. 

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
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13 15162
Q:

The LCM of the three numbers 16, 28 and 42 is

 

A) 168 B) 2
C) 252 D) 336  
 
Answer & Explanation Answer: D) 336  

Explanation:
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Filed Under: HCF and LCM
Exam Prep: Bank Exams

1 15146
Q:

In the following question, select the missing number from the given series.
 
15, 21, 28, 34, ?, 47
 

A) 41 B) 40
C) 44 D) 43
 
Answer & Explanation Answer: A) 41

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

1 15146
Q:

In the following question, select the missing number from the given series.

 

3, 4, 6, 9, 13, ?

 

A) 17 B) 20
C) 18 D) 21
 
Answer & Explanation Answer: C) 18

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

2 15135
Q:

A periscope works by the principle of

A) Total internal reflection B) Refraction
C) Diffraction D) Reflection & Refraction
 
Answer & Explanation Answer: A) Total internal reflection

Explanation:

A periscope is an optical instrument that uses a system of prisms, lenses, or mirrors to reflect images through a tube.

 

 per11526634345.jpg image

 

Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer’s eye.

 

Hence, A periscope works by the principle of Total internal reflection.

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

38 15134
Q:

8 couples (husband and wife) attend a dance show "Nach Baliye' in a popular TV channel ; A lucky draw in which 4 persons picked up for a prize is held, then the probability that there is atleast one couple will be selected is :

A) 8/39 B) 15/39
C) 12/13 D) None of these
 
Answer & Explanation Answer: B) 15/39

Explanation:

P( selecting atleast one couple) = 1 - P(selecting none of the couples for the prize) 

 

 = 1-16C1× 14C1×12C1×10C116C4=1539

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Filed Under: Probability
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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64 15129
Q:

Choose the CORRECT option about the two tangents drawn to the circle from the external point?

(1) The tangents subtend equal angles at the centre of the circle.

(2) The tangents drawn from the external point to a circle are equal in length.

(3) The tangents are equally inclined to the segment which joins the centre to that point.

A) 1 and 2 only B) 2 and 3 only
C) 1, 2 and 3 D) 1 and 3 only
 
Answer & Explanation Answer: C) 1, 2 and 3

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

0 15122
Q:

I am an English word with five letters. If you remove my last four I am still pronounced the same. What am I?

Answer

An English word with five letters in which if you remove the last four letters, still pronounced the same is QUEUE.

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Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

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