Question

The sum of present age of a b c d 76 year after 7 years the ratio of their areas is become 7 ratio 6 ratio 5 ratio 8

Answer 1

Step-by-step explanation:

let the present ages be

a = 7x - 7

b = 6x - 7

c = 5x - 7

d = 8x - 7

the total sum of their ages is 76 yrs

a + b + c + d = 76

( 7x - 7) + ( 6x - 7 ) + ( 5x - 7 ) + ( 8x - 7 ) = 76

26x - 28 = 76

26x = 76 + 28

26x = 104

x = 104/26

x = 4

a = 21

b = 17

c = 13

d = 25