Q:

Two numbers are such that the sum of twice the first number and thrice the second number is 36 and the sum of thrice the first number and twice the second number is 39. Find the difference between the numbers?

A) 15 B) 3
C) 9 D) 6
 
Answer & Explanation Answer: A) 15

Explanation:

Let the required two numbers be a, b

From the given data,

2a + 3b = 36 .....(1)

3a + 2b = 39 .....(2)

Now, by solving 1 and 2 eqnts, we get

5a = 45

a = 9 ....(3)

Put (3) in (1), we get

2(9) + 3b = 36

=> 18 + 3b = 36

3b = 36 - 18

=> b = 18/3 = 6

 

Required, difference between the numbers = a + b = 9 + 6 = 15.

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Q:

What was the final outcome of the vietnam war?

A) North Vietnam defeated south Vietnam B) Saigon renamed as Ho Chi Minh
C) 2 million people were killed D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: World History
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Q:

Which IIT has launched an exclusive incubator "Fabless Chip Design Incubator"(FabCI) to boost chip design?

A) IIT Kanpur B) IIT Hyderabad
C) IIT Madras D) IIT Mumbai
 
Answer & Explanation Answer: B) IIT Hyderabad

Explanation:

IIT Hyderabad has launched an exclusive incubator "Fabless Chip Design Incubator"(FabCI) to boost chip design.

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Filed Under: General Awareness
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0 1636
Q:

Increasing marginal cost of production explains

A) the income effect. B) why the supply curve is upsloping.
C) why the demand curve is downsloping D) the law of demand.
 
Answer & Explanation Answer: B) why the supply curve is upsloping.

Explanation:
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Filed Under: Indian Economy
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0 1522
Q:

The word length of a computer is measured in

A) centimeters B) millimeters
C) bytes D) bits
 
Answer & Explanation Answer: D) bits

Explanation:
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3 2232
Q:

Southerners who were for redemption wanted which of the following?

A) remove blacks from politics B) remove republicans from politics
C) hold political power D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: World History
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0 1965
Q:

Which describes how mRNA is used by a cell?

A) It is used to move information to other cells. B) It is used to check DNA for mutations.
C) It is used to replicate DNA for mitosis. D) It is used to transfer genetic information.
 
Answer & Explanation Answer: D) It is used to transfer genetic information.

Explanation:

A RNA copy of a DNA gene is called as messenger RNA or mRNA. mRna is used in translation because information is translated from one language (nucleotides) into another (amino acids).

 

Hence, mRNA is used to transfer genetic information by a cell.

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Filed Under: Biology
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1 2133
Q:

An ideal gas cannot be

A) liquified B) solidified
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) liquified

Explanation:

An ideal gas cannot be liquified because forces between the molecules are negligible.

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Filed Under: Physics
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