Question

7. The product of p and 9 is equal to the multiplicative inverse of p. Find the
value of p.
(1) 1
(2) 9
(3)1/9
(4)1/3​

Answer 1

Answer:

Option 4)1/3 is the answer.

Because

1/3 × 9 = 3

where 1/3 = p and 3 = 1/p

Answer 2

Answer:

(4) 1/3

Step-by-step explanation:

Let the number be p.

p x 9 = 1/p

Taking first option,

(1) 1 x 9 = 9

Thus, this option is wrong.

Taking second option,

(2) 9 x 9 =81

Hence, proved wrong

Taking third option,

(3) 1/9 x 9 = 1

Hence proved wrong.

Taking fourth option

(4) 1/3 x 9 =3

Reciprocal of 1/3 is 3.

Therefore,

The value of p is 1/3.