Question

The ratio of incomes of two friends 3:5. In the next month their incomes are increased by rs.300 and rs.400 respectively. What is the new ratio of their incomes, if the difference in their incomes after increment is rs 500 ?

Answer 1

1 friend=3x
2 friend=5x
next month
1 friend=3x+300
2friend=5x+400
=3x+300-5x+400=500
=-2x+700=500
=-2x=500-700
=-2x=-200
=x=100
1 friend=3x
=3*100=300
=2friend=5x
=5*100=500