Problema Solution
A student is 15 years old.How old will he be in 4 year's time?How old will he b in y year's time?
Answer provided by our tutors
He is 15 years old. In 4 years, 15+4=19 years old.
So in 4 years, he will be 19 years old.
In y years time, 15+y=y+15.
So in y years time, he will be (y+15) years old.
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