Question

the sum of 2number in the ratio 7:3 is 30, and then difference is​

Answer 1

Answer:

let the no. be 7x and 3x

now

sum of the no=30

7x+3x=30

10x=30

x=3

difference of no=7x-3x

=4x

on puting the value of X=3

we get

=4×3

=12

Answer 2

HEY MATE HERE IS YOUR ANSWER:-

LET THE COMMON MULTIPLE BE 'x'.

7x+3x=30

10x=30

x=30/10

x=3

THEN,

7x=7 x 3=21

3x= 3 x 3= 9

THEN, THE DIFFERENCE IS ,

21-9=12

HOPE IT WILL HELP U FOLLOW ME...