The present ages of Andy and Mikeare in the ratio 5:3. If Andy had been 7 years older and Mike 7 year younger, the age of Andy would have been 3 times the age of Mike. Find their present age
Answers
Answered by
57
let the age of andy be 5x and that of mike is 3x
now if andy had bee 7 year older age of andy will be 5x+7
and if mike had been 7 year younger his age would have been 3x -7
according to question
andy would have been 3 times the age of mike
so,
3(3x-7)=5x+7
9x-21=5x+7
4x=28
x=7
so present age of andy =5x= 5×7=35years
that of mike =3x = 3×7=21 years.
hope it helps
now if andy had bee 7 year older age of andy will be 5x+7
and if mike had been 7 year younger his age would have been 3x -7
according to question
andy would have been 3 times the age of mike
so,
3(3x-7)=5x+7
9x-21=5x+7
4x=28
x=7
so present age of andy =5x= 5×7=35years
that of mike =3x = 3×7=21 years.
hope it helps
Answered by
2
Given:
The present ages of Andy and Mikeare in the ratio 5:3. If Andy had been 7 years older and Mike 7 year younger, the age of Andy would have been 3 times the age of Mike.
To Find:
Find their present ages.
Solution:
Let present age of andy = 5x
Let present age of mike = 3x
So,
After 7 years, age of andy = 5x + 7
Before 7 years, age of mike = 3x - 7
According to the question,
5x + 7 = 3(3x - 7)
5x + 7 = 9x - 21
7 + 21 = 9x - 5x
4x = 28
x = 7
Therefore,
Andy's present age = 5x = 5(7) = 35
Mike's present age = 3x = 3(7) = 21
Hence, present ages of Andy and Mike are 35 years and 21 years respectively.
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