Question

A number is 4 times another number, If
21 is added to both the numbers then first
number becomes times the other
number. What are the numbers?​

Answer 1

Answer:

168 & 42

Step-by-step explanation:

consider x and y are unknowns,

given that x=4y

and also given that (x+21)=3*(y+21)

by solving ,x+21=3y+63,

4y+21=3y+63,(since x=4y)

y=63-21

y=42.

substituting y=42 in x=4y,

we get x =168