Page 1 - CL-8 CH-1CBQ

SAI International School

Class : VIII

Mathematics

CH1 -RATIONAL NUMBERS (CBQ)

An integer is added to its multiplicative inverse. Which of the following statement is
valid for the resultant number?
a. It is an integer
1 b. It is a fraction

c. It is a rational
d. It is always one
2 Which of the following set of rational numbers lies between – 2 and 3?
a. -1/2 b) 0 c) -16/ 2 d) both a and b
3 Find x such that =
x=__________

4 If y is the reciprocal of rational number x, then the reciprocal of y will be x. (T/F)

5 (x+y)/2 is a rational number .
(a) Between x and y
(b) Less than x and y both
(c) Greater than x and y both
(d) Less than x but greater than y
6 Write a rational number between 3 and 4 .

7 The equivalent of 5/7 whose numerator is 45, is _____.

8 If y is the reciprocal of x, then the reciprocal of y in terms of x will be—————-
2
9 Is the statement ‘All integers are rational numbers but all rational numbers are not
integers’ correct? Give two examples to support your answer.

10 There are two square pieces of clothes.

The length of the side of bigger cloth is 5-cm more than the length of the smaller one.
Perimeter of the bigger cloth is 4/3 times perimeter of the smaller cloth. Find the
length of the side of the smaller cloth.

11 Assertion: Zero is a rational number.
Reason: Each rational number is a quotient of any two integers, while its divisor