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

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

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

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

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

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

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

Share This Page -