Question

3. Find a number which when multiplied by 5 is increased by 80.​

Answer 1

Answer:

=20

Step-by-step explanation:

let the no. be x

5x = x + 80

5x- x = 80

4x= 80

= x= 20

:proof

20× 5= 100

which is 80+ of the no.

Answer 2

Answer:

The number = 20

Step-by-step explanation:

Let the number be x

Given

• When x is multiplied by 5 = 80 + x
• So equation = 5 × x = x + 80

=>5x = x + 80

=>5x - x = 80

=>4x = 80

=>x = 80/4

=>x = 20