Question

divide Rs.1200 in the ratio of 5:7

Answer 1

let the money be x
now,
5x+7x=1200
12x=1200
x=1200/12
x=100

so, 5*100=500
7*100=700

Answer 2

let... the rs.1200 to be x
5x+7x=1200
12x=1200

x=1200/12
x=12×100
=1200
so it is 100

since,5*100=500
and 7*100=700