Question

find a number which when multiplied by 6 is increased by 80​

Answer 1

Let the number=x

5x=x+80

5x-x=80

4x=80

x=80/4

x=20

Answer 2

ans is )16

let consider num is x

num multi. by 6

we get num =6x

which increase origanal num to 80

we get here

num=x+80

6x=x+80

5x=80

x=80/5

x=16

so num is 16