Question

11) The reciprocal of 1 is -

a) 1 b) -1 c) 0 d) Not Defined

12) –(-x) is same as -

a) -x b) x c) 1/x d) -1/x

13) Zero (0) is

a) The identity for Addition of rational no.

b) The identity for Subtraction of rational no.

c) The identity of Multiplication of rational no.

d) The identity of division of rational no.

14) To get the Product 1, we should multiply 8/21 by

a) 8/21 b) -8/21 c) 21/8 d) -21/8



15) Between two given rational numbers, we can find –

a) One and only One rational number.

b) Only Two rational numbers.

c) Only Ten rational numbers.

d) Infinitely many rational numbers.​

Answer 1

Answer:

11) reciprocal of 1 is 1 because

1/1 = 1

Answer 2

Answer:

11 - b

12 - b

13 - c

14- b

15-d