Question

the age of a and b are in the ratio 5:7 eight years ago Thier ages were in the ratio 7:13 find the their present ages​

Answer 1

Step-by-step explanation:

7x + 8 / 13x + 8 = 5/7

65x + 40 = 49x + 56

16 x = 16

x = 1

7x + 8= 7 × 1 = 7 + 8= 15 yrs

13x+8 = 13 × 1 + 8 = 21 yrs

present age of a = 15 yrs

present age of b = 21 yrs