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Q:

The average weight of 25 bags is 55 kg. The weight of one bag was misread as 65 instead of 56. Find the correct mean value.

A) 55.25 B) 55.36
C) 54.64 D) 55.65
 
Answer & Explanation Answer: C) 54.64

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Filed Under: Average
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Q:

If '+' means 'brother of', 'x' means 'mother of', '-' means 'father of' and '/' means 'son of', then which of the following means V is nephew of W?

A) V + U - W B) V / U + W
C) V x W - U D) V / W - U
 
Answer & Explanation Answer: B) V / U + W

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Filed Under: Blood Relations
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Q:

The cost of 15 kg of groundnuts and 4 kg of cashews is Rs.7,000. The cost of 10 kg of cashews is equal to 25 kg of groundnuts. Find the cost of groundnut per kg.

A) Rs.320 B) Rs.700
C) Rs.540 D) Rs.280
 
Answer & Explanation Answer: D) Rs.280

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Filed Under: Simplification
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Q:

X and Y are parents of four married sons, one married daughter and one unmarried daughter living in a joint family. Two of the sons have two daughters and one son each. The other two have two sons and one daughter each. How many male members are there in the family.

A) 9 B) 10
C) 11 D) 12
 
Answer & Explanation Answer: D) 12

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Filed Under: Blood Relations
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Q:

____ is not an example of refraction of light.

 

A) Twinkling effect of stars B) Mirages
C) Lateral inversion D) Bending of light while passing through a medium
 
Answer & Explanation Answer: C) Lateral inversion

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Filed Under: Physics
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Q:

Which of the following is not a renewable source of energy?

A) Solar B) Wind
C) Ocean waves D) Coal
 
Answer & Explanation Answer: D) Coal

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Filed Under: Physics
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Q:

The diagonals of 2 squares M and N are in the ratio 2:1. The ratio of their areas is

A) 1:2 B) 2:1
C) 1:4 D) 4:1
 
Answer & Explanation Answer: D) 4:1

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Filed Under: Area
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Q:

The official journal of the Committee on Space Research (COSPAR) is

A) Astrophysics and Space B) Space Science Reviews
C) Advances in Space Research D) Cosmic Research
 
Answer & Explanation Answer: C) Advances in Space Research

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Filed Under: General Science
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