# Free Rational Numbers 02 Practice Test - 7th grade

38  to get 516?

A.

1216

B.

1316

C.

1116

D.

1416

#### SOLUTION

Solution : C

Let the number to be added be x.

38+x=516

x=516+38=516+616=1116

In the given fig. locate the position where the ball lies on the number line.

A.

15

B.

25

C.

35

D.

45

#### SOLUTION

Solution : C

The space between 0 and 1 is divided into 10 equal parts. The ball lies in sixth place.

Therefore, the location ball lies in is, 610=35

Find the value of
163÷43.

A.

1

B.

3

C.

4

D.

2

#### SOLUTION

Solution : C

163÷43=163×34=4

Compare the rational numbers and choose the correct option.

3926 ___64

A.

>

B.

<

C.

=

D. None of the above

#### SOLUTION

Solution : C

Reducing  3926   to its lowest form ,  we get,

39÷1326÷1332( 13 is the common factor)

Multiplying numerator and denominator by 2 we get

3×22×2 = 64

Hence, 3926 is also equal to  64

So, both the fraction are equal

Hence,  3926=64

Which of the following is a rational number equal to 47 with 16 as the numerator?

A.

1621

B.

1628

C.

1615

D.

1620

#### SOLUTION

Solution : B

Consider the given rational number 47.

To make the numerator as 16, we have to multiply it by 4.

Multiplying both numerator and denominator by 4, we get

4× 47× 4=1628

Therefore, 1628 is an equivalent rational number of 47 with numerator equal to 16.

Add 213 to the reciprocal of 2612.

A.

57

B.

56

C.

67

D.

413

#### SOLUTION

Solution : D

Reciprocal of 2612 is 1226.

213+1226      [Taking LCM]

=4261226=41226=826=413

Find the sum of the rational numbers
719  and  257.

A.

2157

B.

2357

C.

2247

D.

3247

#### SOLUTION

Solution : B

719+257=(7×3)(19×3)+257

=2157+257=2357

102 in simplest form is ___

___

#### SOLUTION

Solution :

102=2×52

=5

413>0.  True or False?

A.

True

B.

False

#### SOLUTION

Solution : A

Any positive number is greater than 0.

432436

A.

True

B.

False

#### SOLUTION

Solution : B

A negative number cannot be greater than a positive number.

so,43<2436