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Q:

The ancient name of North Bihar was

A) Vajji B) Vatsa
C) Surasena D) Avant
 
Answer & Explanation Answer: A) Vajji

Explanation:
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Filed Under: Indian History

Q:

Which river has no mention in Rigaveda

A) Sindhu B) Saraswati
C) Yamuna D) Periyar
 
Answer & Explanation Answer: D) Periyar

Explanation:
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Filed Under: Indian History

Q:

The Indus Valley Civilization was Non-Aryan because

A) It was Urban B) It has a pictographic script
C) It had an agricultural economy D) It extended up to the narmada Valley
 
Answer & Explanation Answer: A) It was Urban

Explanation:

The Indus Valley Civilization was Non-Aryan because it was Urban.

 

Harappan Civilization is also known as The Indus Valley Civilisation. It was a Bronze Age civilisation mainly in the northwestern regions of South Asia, extending from what today is northeast Afghanistan to Pakistan and northwest India.

 

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Filed Under: Indian History
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Q:

A father said his son , " I was as old as you are at present at the time of your birth. " If the father age is 38 now, the son age 5 years back was :

A) 14 B) 19
C) 33 D) 38
 
Answer & Explanation Answer: A) 14

Explanation:

Let the son's present age be x years .Then, (38 - x) = x => x= 19. 

 

Son's age 5 years back = (19 - 5) = 14 years

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Filed Under: Problems on Ages

Q:

In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is :

A) 19 B) 29
C) 39 D) 49
 
Answer & Explanation Answer: C) 39

Explanation:

Let B's present age = x years. Then, A's present age = (x + 9) years.
(x + 9) + 10 = 2(x - 10)

 => x + 19 = 2x - 20

 => x =39.

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Filed Under: Problems on Ages

Q:

A train is traveling at 48 kmph . It crosses another train having half of its length , traveling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. What is the length of the platform ?

A) 500 B) 400
C) 360 D) 480
 
Answer & Explanation Answer: B) 400

Explanation:

Speed of train 1 = 48 kmph
Let the length of train 1 = 2x meter

Speed of train 2 = 42 kmph
Length of train 2 = x meter (because it is half of train 1's length)

Distance = 2x + x = 3x
Relative speed= 48+42 = 90 kmph = (90*5/18)  m/s = 25 m/s 


Time = 12 s

Distance/time = speed 

=>3x/12 = 25 (25*12)/3 

Length of the first train = 2x = 200 meter
Time taken to cross the platform= 45 s

Speed of train 1 = 48 kmph = 480/36 = 40/3 m/s

Distance = 200 + y     [where y is the length of the platform] 

x =100m => 200+y = 45* 40/3
y = 400m

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Filed Under: Problems on Trains

Q:

Two stations P and Q are 110 km apart on a straight track. One train starts from P at 7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25 kmph. At what time will they meet?

A) 10.30 B) 10
C) 8.45 D) 9.30
 
Answer & Explanation Answer: B) 10

Explanation:

Assume both trains meet after x hours after 7 am

Distance covered by train starting from P in x hours = 20x km

Distance covered by train starting from Q in (x-1) hours = 25(x-1)

Total distance = 110

=> 20x + 25(x-1) = 110

=> 45x = 135

=> x= 3

Means, they meet after 3 hours after 7 am, ie, they meet at 10 am

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Filed Under: Problems on Trains

Q:

Penology : Punishment :: Seismology : ?

A) Medicine B) Earthquakes
C) Law D) Liver
 
Answer & Explanation Answer: B) Earthquakes

Explanation:

Penology is the study of punishment. Similarly, Seismology is the study of Earthquakes.

 

Hence, Penology : Punishment :: Seismology : Eartquakes.

 

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Filed Under: Analogy
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