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Q:

Who is the father of modern chemistry?

A) Priestley B) Lavoisier
C) Dalton D) Mendeleeff
 
Answer & Explanation Answer: B) Lavoisier

Explanation:

Antoine-Laurent de Lavoisier, a french chemist is considered as the "Father of Modern Chemistry."

who_is_the_father_of_modern_chemistry1538547478.jpg image

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Filed Under: Chemistry
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Q:

A man invested Rs. 14,400 in Rs. 100 shares of a company at 20% premium. If his company declares 5% dividend at the end of the year, then how much does he get?

A) Rs.500 B) Rs.600
C) Rs.650 D) Rs.720
 
Answer & Explanation Answer: B) Rs.600

Explanation:

Number of shares = 14400120=120.

 

Face value = Rs.(100 x 120) = Rs.12000.

 

Annual income = Rs (5/100*12000) = Rs. 600

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Filed Under: Stocks and Shares

Q:

Hong Kong will be transferred to china in

A) 1990 B) 1996
C) 1997 D) 2000
 
Answer & Explanation Answer: C) 1997

Explanation:
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Q:

How many-shares of market value RS.25 each can be purchased for Rs.12750, brokerage being 2% ?

A) Rs.450 B) Rs.500
C) Rs.550 D) Rs.600
 
Answer & Explanation Answer: B) Rs.500

Explanation:

CP. of each share= Rs.(25 + 2% of 25) = Rs.25.50. 

Number of shares= 1275025.50= 500

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Q:

How many 4's are there preceded by 7 but not followed by 3?

5  9  3  2  1  7  4  2  6  9  7  4  6  1  3  2  8  7  4  1  3  8  3  2  5  6  7  4  3  9  5  8  2  0  1  8  7  4  6  3

A) Four B) Three
C) Six D) Five
 
Answer & Explanation Answer: A) Four

Explanation:

7  4  2

7  4  6

7  4  1

7  4  6

 

Only at these placees 4 is preceded by 7 but not followed by 3

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Q:

What is the ratio whose terms differ by 40 and the measure of which is 2/7 ?

A) 16:56 B) 14:56
C) 15:56 D) 16:72
 
Answer & Explanation Answer: A) 16:56

Explanation:

Let the ratio be x : (x + 40), then ,

 

 

 

xx+40=27 

 

 7x = 2x + 80 

 

 x = 16 

 

Required ratio = 16 : 56

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Filed Under: Ratios and Proportions

Q:

A person was asked to state his age in years. His reply was , "Take my age 3 years hence, multiply it by 3 and subtract 3 times my age 3 years ago and you will know how old I am." What was the age of the person ?

A) 18 B) 20
C) 24 D) 30
 
Answer & Explanation Answer: A) 18

Explanation:

Let the present age of person be   x years.

Then, 3(x + 3) - 3(x - 3 ) = x   <=> (3x + 9) - (3x - 9) = x  <=> x = 18..

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Filed Under: Decimal Fractions

Q:

How many digits will be there to the right of the decimal point in the product of 95.75 and 0.2554 ?

A) 6 B) 7
C) 8 D) 9
 
Answer & Explanation Answer: A) 6

Explanation:

Sum of the decimal places = 7 .

Since  the last digit to the extreme right  wil be zero ( 5 * 4 = 20),  so there will be  6  significant digits to the right of the decimal point....

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Filed Under: Decimal Fractions