Question

Exercise 2.2
Page: 28
1. If you subtract * from a number and multiply the result by 12, you get 1/8 what is the
number?​

Answer 1

Answer:

let the never be x

then multiply by it 12

12*x = 1/8

x = 1/8*1/12

x = 1/96

Answer 2

If you subtract 1/2 from a number and multiply the result by 1/2 , you get 1/8 .What is the number
Answer:

Let us consider the number be x

As per the given condition

If we subtract 1/2 from a number and multiply the result by 1/2, then we get 1/8.

So the equation becomes

⇒ (1/2)(x – 1/2) = (1/8)

⇒ (x – 1/2) = (1/4)

⇒ 4x – 2 = 1

⇒ 4x = 3

Hence x = 3/4

Therefore 3/4 is the number from which if we subtract 1/2 from a number and multiply the result by 1/2, we get 1/8.