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Q:

In which of the following kinds of organism is the phenomenon found wherein the female kills the male after copulation

A) Dragonfly B) Honeybee
C) Spider D) Pit viper
 
Answer & Explanation Answer: B) Honeybee

Explanation:
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Filed Under: Animals and Birds

Q:

For which one of the following snakes is the deit mainly composed of other snakes?

A) Krait B) Russel's viper
C) Rattlesnake D) King cobra
 
Answer & Explanation Answer: D) King cobra

Explanation:
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Filed Under: Animals and Birds

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

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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:

If 36 men can do a piece of work in 25 hours, in how mwny hours will15 men do it?

A) 40 B) 50
C) 60 D) 70
 
Answer & Explanation Answer: C) 60

Explanation:

Let the required no of hours be x. Then

 

Less men , More hours    (Indirct Proportion)

 

Therefore,  15:36 ::25:x 

=> (15 x X)=(36 x 25)  => x = 60

 

Hence, 15 men can do it in 60 hours.

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Filed Under: Chain Rule

Q:

If 20 men can build a wall 56 meters long in 6 days , what length of  a similar wall can be  built by 35 men in 3 days?

A) 46 B) 47
C) 48 D) 49
 
Answer & Explanation Answer: D) 49

Explanation:

Let the required length be x meters

 More men, More length built     (Direct proportion) 

Less days, Less length built      (Direct Proportion)

Men20:35Days6 : 3⋮⋮ 56 :x 

=> (20 x 6 x X)=(35 x 3 x 56) 

=> x = 49 

Hence, the required length is 49 m.

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Filed Under: Chain Rule