Question

Divide 25 into 2 parts such that seven times the first part added to 5 times the second part makes 139

Answer 1

Hi friend!!

Let the two parts be x, y

→x+y=25

y=25-x

Given that seven times the first part added to 5 times the second part makes 139

7x+5y=139

→7x+5(25-x)=139

7x+125-5x=139

2x=14

x=7

y=25-x=25-7=18

So, the two parts are 7 and 18

I hope this will help you

:D