Present ages of Arun and Amit are in the ratio 4:5. Six years from now, the ratio of their ages will be 5:6. Find the present age of Arun.
Answers
Answered by
1
Answer:
Let their present age be 4a and 5a.
After 8 years, their ages will be (4a+8) and (5a+8)
Ratio would be (4a+8) : (5a+8)
But this ratio is given to be 5:6. Therefore
(4a+8) : (5a+8) = 5:6
solve this (4a+8) / (5a+8) = 5/6
=> 6 x (4a+8) = (5a+8) x 5
=> 24a + 48 = 25a + 40
=> a = 8
So their present age would be
4a = 4x8 = 32
5a = 5x8 = 40
Answered by
0
Answer:
let us multiple of ratio is - x
so
now present age of both is 4x , 5x
in ratio 4x:5x
now after 6 six year
4x+6 :5x+6 = 5:6
24x + 36 = 25x + 30
36 - 30 = 25x - 24x
x = 6
so present age of arun is 4×6 = 24 ans
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