SOLUTION: one year ago,the age of Anuj's and Brijesh's age was 5:6 respectively.Four years hence ,this ratio would become 6:7 .How old s Brijesh?

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Question 932886: one year ago,the age of Anuj's and Brijesh's age was 5:6 respectively.Four years hence ,this ratio would become 6:7 .How old s Brijesh?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
a, Anuj's age, b, Brijesh's age
5(a-1) = 6(b-1) 0r 5a - 6b = -1
6(a+4) = 7(b+4)
.......
(5a - 6b = -1)
6a - 7b = 4
.........
-7(5a - 6b = -1)
6(6a - 7b = 4)
a = 31, Anuj's age
b = 26, Brijesh's age +155+-+6b+=+-1, +156=+6b
...
And checking.. in 4 years
6(35) = 7(30) = 210