A student’s age is such that in 15 years’ time, she will be twice the age she was 10 years ago. How old is the student now? with workings please
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let,The present age of the student is x.
then 10yrs age his age was (x-10).
and in 15 yrs i.e after 15yrs he will be (x+15) yrs old.
By the given condition,
(x+15)=2*(x-10)
=>x+15=2x-20
=>2x-x=15+20=35
=>x=35
Therefore,the present age of the student is 35 yrs.
then 10yrs age his age was (x-10).
and in 15 yrs i.e after 15yrs he will be (x+15) yrs old.
By the given condition,
(x+15)=2*(x-10)
=>x+15=2x-20
=>2x-x=15+20=35
=>x=35
Therefore,the present age of the student is 35 yrs.
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