Question

a number four time another number if 21 is added to both the numbers then first number becomes 7 by 4 times the other number what are the number in one variable​

Answer 1

Answer:

let the other number be x

so first number become 4x

if 21 is added to first number the number become x +21

if 21 is added to second number the number become 4x +21

according to condition

(4x+21) = 7/4 (x+21)

4(4x+21) = 7(x+21)

16x +84 = 7x +147

16x -7x = 147-84

9x = 63

x = 63/9

x =7

second number = 4x

= 4* 7

=28

the first number is 7 and another number is 28