## Monday, 13 June 2011

### 7th cbse maths FRACTIONS & DECIMALS

FRACTIONS & DECIMALS
1 The fraction ( p+q)/q equals

a) p

b) p/q +q

c) p/q +1

d) p/q +p
2 One side of a square 2/a ,its perimeter is

a) 4/a

b) 4/a2

c)8/a

d)8/a2

3 Product of 5/7× 3/5× 2/5 ×5 is equal to a

a) 3

b)11/7

c)36/7

d)6/7

Write in descending order 4/5, 2/3, 1/2, ¾

a)4/5>2/3> 1/2 3/4

b)1/2>2/3>4/5>3/4

c)3/4>1/2>4/5>2/3

d)4/5>3/4>2/3>1/2

5 Reciprocal of 1 3/11

a)11/13

b)11/10

c)11/9

d)11/14

6 Which of the fraction is not equal to the other three
a)2/5

b)26/65

c)14/35

d)34/68

7 Simplify 3 ¼ + 1/2÷ 3/4 - 1/2× 3 ½

a)2 1/6

b) 3 1/6

c) 2 1/5

d)3 1/5

(2/5 +3/5)÷ (7/5 -4/10)

a) 1

b) 0

c)3/5

d)5/7
9  When simplified the product ( 2- 1/3) (2- 3/5 )(2-5/7) (2- 17/19)

a)21/9

b)23/3

c)19/17

d)none

10)The value of ½ of (3/4÷ 2/3 )is
a) 3/16

b)9/16

c)3/6

d) 9/4

11 If 25 ×32 =800 then 2.5 × .32 =

a)0.800

b)8.00

c)80.0

d).0800

12 0.0302×0.52 =

a)0.051704

b)0.015407

c)0.15704

d)none
13 0.04+ 404/1000=

a)0.0404

b)0.0444

c)444

d)0.444
14  16.96÷ 400 =

a)420

b)0.0424

c)420.04

d) 0.420

15 The value of 1.8/(0.4×0.3) is

a)0.3/0.2

b)0.4/0.2

c)6/0.3

d)none
16 The value of (0.5)2×(0.1)3 is

a)25

b)0.00025

c)0.25

d)0.0025

17) If 43m =0.086 then m has the value
a)0.002

b)0.02

c)0.2

d)2

18) The result of adding the difference of 3.003 and 2.05 to their sum

a)6.006

b)60.06

c)600.6

d)0.6060
19) Find the average of 0.3, 3, 0.03 , and 0.002 is

a)0.833

b)0.803

c)83.3

d)833

20) 0.089m in cm is

a)89

b)8.9

c)890

d)0.89