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Q:

When 0.36 is written in simplest form, the sum of the numerator and the denominator is :

A) 15 B) 34
C) 64 D) 13
 
Answer & Explanation Answer: B) 34

Explanation:

0.36 = 36/100 = 9/25.

Sum of the numerator and denominator is 9 + 25 = 34

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Filed Under: Decimal Fractions

Q:

The expression (11.98 * 11.98 + 11.98 * (x) + 0.02 * 0.02) will be a perfect square for x equal to :            

A) 0.01 B) 0.02
C) 0.03 D) 0.04
 
Answer & Explanation Answer: D) 0.04

Explanation:

Given = (11.98)^2 + (0.02)^2 + 11.98 * x. 

For the given expression to be a perfecr square, we must have

11.98 * x = 2 * 11.98 * 0.02 => x = 0.04

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Filed Under: Decimal Fractions

Q:

If 1.5x = 0.04y, then the value of ( (y - x) / (y+x) ) is :

A) 73/77 B) 7.3/77
C) 730/77 D) 7300/77
 
Answer & Explanation Answer: A) 73/77

Explanation:

x / y  = 0.04 / 1.5 = 4 / 150 = 2 / 75.

= > ( (y - x) / (y+x) ) = (1 - (x / y)) / ( 1 + ( x / y)) = (1 - 2/75) / (1 + 2/75) = 73/77...

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Filed Under: Decimal Fractions

Q:

The rational for the recurring decimal 0.125125......is

A) 125/99 B) 125/999
C) 125/9999 D) 125/9
 
Answer & Explanation Answer: B) 125/999

Explanation:

   0.125125...... = 0.125¯ =   125/999

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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

Q:

(0.2 * 0.2 + 0.01) ( 0.1 * 0.1 + 0.02)^(-1) is equal to :

A) 5/3 B) 9/3
C) 11/3 D) 13/3
 
Answer & Explanation Answer: A) 5/3

Explanation:

Given = (0.2 * 0.2 + 0.01) / ( 0.1 * 0.1 + 0.02) = (0.04 + 0.01) / (0.01 + 0.02) = 0.05 / 0.03 = 5/3...

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Filed Under: Decimal Fractions

Q:

When 52416 divided by 312 , the quotient is 168. What will be the quotient when 52.416 is  divided by 0.0168 ?

A) 3120 B) 32.10
C) 321.0 D) 3.120
 
Answer & Explanation Answer: A) 3120

Explanation:

Given, 52416 / 312 = 168.

<=>  52416 / 168 = 312.

52.416 / 0.0168 = 524160 / 168 = 3120.

 

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Filed Under: Decimal Fractions

Q:

Which is the only host team to win the ICC(50 over) Cricket World Cup

A) South Africa B) India
C) Australia D) West Indies
 
Answer & Explanation Answer: B) India

Explanation:
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Filed Under: Sports