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Q:

This animal fasts for about 8 months in a year and yet is active, gives birth, and nurses its young while fasting. Name the animal

A) Polar Bear B) Frog
C) Reindeer D) Lion
 
Answer & Explanation Answer: A) Polar Bear

Explanation:
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Filed Under: Animals and Birds

Q:

Pashmina shawl is made from the hair of 

A) Sheep B) Goat
C) Rabbit D) Yak
 
Answer & Explanation Answer: B) Goat

Explanation:
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Filed Under: Animals and Birds

Q:

Among the following animals , the figures of which are found in the state emblem of india?

A) Bull, deer and eagle B) Deer and elephant
C) Elephant, Tiger and Bull D) Horse and Bull
 
Answer & Explanation Answer: D) Horse and Bull

Explanation:

Refer National symbols

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Filed Under: Animals and Birds

Q:

For How many years have the dinosaurs been extinct?

A) About 25 million years B) About 65 million years
C) About 100 million years D) About 135 million years
 
Answer & Explanation Answer: B) About 65 million years

Explanation:
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Filed Under: Animals and Birds

Q:

2 men and 7 boys can do a piece of work in 14 days; 3 men and 8 boys can do the same in 11 days. Then, 8 men and 6 boys can do three times the amount of this work in 

A) 18 days B) 21 days
C) 24 days D) 30 days
 
Answer & Explanation Answer: B) 21 days

Explanation:

(2 x 14) men +(7 x 14) boys = (3 x 11) men + (8 x 11) boys

 =>5 men= 10 boys    => 1man= 2 boys

 Therefore, (2 men+ 7 boys) = (2 x 2 +7) boys = 11 boys

 

( 8 men + 6 boys) = (8 x 2 +6) boys = 22 boys.

 Let the required  number of days be x.

 More boys , Less days     (Indirect proportion)

 More work , More days    (Direct proportion)

 Boys22:11Work1 : 3 14:x

 Therefore, (22 * 1 * x) = (11 * 3 * 14)

=> x = 21 

Hence, the required number of days = 21

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Filed Under: Chain Rule

Q:

A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the begining and 100 more  after 35 days and completes the work in stipulated time. If he had not  engaged  the additional men, how many days  behind schedule would it be finished?

A) 3 B) 5
C) 6 D) 9
 
Answer & Explanation Answer: B) 5

Explanation:

[(100 x 35) + (200 x 5)]men can finish the work in 1 day 

Therefore, 4500 men can finish the work in 1 day. 100 men can finish it in  4500/100= 45 days.

This is 5 days behind Schedule

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Filed Under: Chain Rule

Q:

A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?

A) 75 B) 82
C) 100 D) 110
 
Answer & Explanation Answer: D) 110

Explanation:

Originally let there be x men.

Less men, More days     (Indirect Proportion)

 Therefore, (x-10) : x  :: 100 :110

=> (x - 10) * 110 = x * 100    => x= 110

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Filed Under: Chain Rule

Q:

If 8 men can reap 80 hectares in 24 days , then how many hectares can 36 men reap in 30 days?

A) 350 B) 400
C) 425 D) 450
 
Answer & Explanation Answer: D) 450

Explanation:

Let the required no of hectares be x. Then 

More men, More hectares      (Direct proportion)

More days, More hectares      (Direct proportion)

 Men8 : 36Days24:30 80 :x

=> ( 8 * 24 * x) = (36 * 30 * 80)

=>  x= 450

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Filed Under: Chain Rule