Question

Two numbers are such that the ratio between them is 7:5. If each is increased by 10, the ratio between the new number so formed is 9:7. Find the original numbers.

Answer 1

Step-by-step explanation:

Let the ratio,3:5 be taken as 3x and 5x

BTP,

If the ratios are increased by 10 i.e,

3x+10 and 5x+10

BTP,

3x+10+5x+10=5x+7x

8x+20=12x

8x-12x=-20

-4x=-20

x=-20/-4

=5

Therefore,the original ratio 3x and 5x

3x=3×5=15

5x=5×5=25