Arun ice age is 3 times his son's age 10 years ago he was five times his son's age find their present ages
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son's present age=x
arun's present age=3x
10 years ago son age would be x-10
10years ago arun age would be 3x-10
3x-10=5(x-10)
3x-10=5x-50
-10+50=5x-3x
40=2x
40/2=x
x=20
therefore son age is 20 years and a run age is 3×20=60years
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