Question

2 numbers are in the ratio 3:5. If each number increases by 10 the new ratio will be 5:7. Find the original numbers

Answer 1

Let the numbers be 3x and 5x.

Then , 5x+103x+10=75 or 7(3x+10)=5(5x+10)

∴4x=20orx=5

So, the numbers are 15, 25