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Q:

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

2, 5, 12, 27, ?

A) 53 B) 56
C) 57 D) 58
 
Answer & Explanation Answer: D) 58

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Q:

If cos 60° - sec 30° = x, then the value of x is

A) 1 B) (√3+√2)/2
C) (√3-4)/2√3 D) 1/√2
 
Answer & Explanation Answer: C) (√3-4)/2√3

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Q:

If the resistance of a conductor is doubled, the current gets halved. This is because

A) I = V - R B) I = V/R
C) I = Rn/V D) I = VR
 
Answer & Explanation Answer: B) I = V/R

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Q:

The sum of two digits of a number is 10. If the digits are interchanged, then its value increases by 18. Find the number.

 

A) 46 B) 64
C) 19 D) 28
 
Answer & Explanation Answer: A) 46

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Q:

What is the duration of the world’s shortest X–ray laser has been successfully created by the scientists?

 

A) 39 nanoseconds B) 43 attoseconds
C) 15 picoseconds D) 57 microseconds
 
Answer & Explanation Answer: B) 43 attoseconds

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Q:

Compute 4923 / 547 - 10

A) 1 B) -1
C) 1641/179 D) 1614/179
 
Answer & Explanation Answer: B) -1

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Q:

The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called

A) velocity B) force
C) momentum D) inertia
 
Answer & Explanation Answer: D) inertia

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Q:

In the given sequence, if every letter beginning from position 8 from the left is replace by its next letter in the English alphabet., and Z is replaced by A, then how many Vs will be there in the resulting sequence?

 

ZUDJKNCXVCSLLIEBSFJVATWQK

 

A) 0 B) 3
C) 2 D) 1
 
Answer & Explanation Answer: A) 0

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