Question

the positive number is 5 times another number if 21 is added to the both numbersthen the new number becomes twice the another new number find the two numbers​

Answer 1

Answer:

Step-by-step explanation:

let the 1 st required  positive number=x

and second required number=y

according to first condition

⇒ x= 5(y)⇒A

according to second condition

⇒  x+21= 2(y+21)

⇒ x+21=2 y+42

⇒ x-2 y=21

⇒5 y-2 y=21              [using A]

⇒  3 y=21

⇒y=7

as, x=5 y

⇒x=5(7)

⇒ x=35