Question

Two numbers are in the ratio 4:7.If4 is added

to each number then the ratio becomes 3,: 5.

Find the smaller number​

Answer 1

Answer:

let the ratio 4and 7 be 4x and 7x

according to the question ;

4x+4/ 7x+4 = 3/5

=5(4x+4 )=3(7x+4)

= 20x+20=21x = 12

20x-21x = 12-20

-x = -18

therefore x= 18

4x = 4 * 18 = 72

7x = 7 * 18 = 126

Step-by-step explanation: