Fractions Questions and Answers

Exercise


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Q 1

If x=1/y and y=1/z, then


A)  

x=1/z

B)  

x=1/z²

C)  

x=z

D)  

None of the above


Correct Option - C

Explanation

x=1/y

x=1/(1/z) = z

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Q 2

A box contains 140 ice-creams, 30% of which are strawberry, two-sevenths are chocolate, 5% are mango and the rest are vanilla. How many ice-creams are vanilla flavoured?


A)  

14

B)  

49

C)  

35

D)  

51


Correct Option - D

Explanation

No. of strawberry ice-creams

= 30% of 140

= 42

No. of chocolate ice-creams

= (2/7)*140

= 40

No. of mango ice-creams

= 5% of 140

= 7

No. of vanilla

= 140-(42+40+7)

= 51

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Q 3

Find the decimal value of 30% of 20% of (7/12).


A)  

0.7

B)  

0.07

C)  

0.035

D)  

0.35


Correct Option - C

Explanation

(30/100)*(20/100)*(7/12)

= 7/200

= 0.035

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Q 4

What fraction of a number is two-sevenths of two and a half times the number?


A)  

5/7

B)  

4/7

C)  

7/4

D)  

7/5


Correct Option - A

Explanation

Let the number be x.

2½ x = (5/2)x

(2/7)*(5/2)x

= 5/7 x

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Q 5

Convert 2% of (0.01) into a fraction.


A)  

2

B)  

2/100

C)  

2/1000

D)  

2/10000


Correct Option - D

Explanation

2% of 0.01

= (2/100)*(0.01)

= (2/100)*(1/100)

= 2/10000

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Q 6

Priya and Riya baked cookies. Priya ate half of it and Riya ate one-third of it. They gave the rest to Heena. What fraction of the cookies did Heena get?


A)  

1/6

B)  

1/5

C)  

1/4

D)  

2/3


Correct Option - A

Explanation

Let x be the fraction of the cookies Heena got.

(1/2)+(1/3)+x=1

(5/6)+x = 1

x = 1-(5/6)

x = 1/6

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Q 7

If x=2 and y=3, find the value of


A)  

35/6

B)  

6

C)  

05/02/2015

D)  

07/02/2015


Correct Option - A

Explanation

x+(1/x)+(1/y)+y

= 2+(1/2)+3+(1/3)

= 35/6

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