SOLUTION: 20 years ago, i was 2 years older than my sister. I am now 43years, how old will my sister be in 2025?

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Question 1184720: 20 years ago, i was 2 years older than my sister. I am now 43years,
how old will my sister be in 2025?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
x, your sister. Now.

Twenty years ago, you were 23.

-


-------------sister's age NOW.

Will year 2015 be four years in the future from now? You take this from here.
Answer by ikleyn(52799)   (Show Source): You can put this solution on YOUR website!
.
20 years ago, I was 2 years older than my sister. I am now 43years,
how old will my sister be in 2025?
~~~~~~~~~~~~~~~ 

If 20 years ago you were 2 years older than your sister, then now, today, this year you are 2 years older than she is now.

Since now you are 43 years old, your sister's age is 41 years.


So, in 2025, 4 years from today, your sister will be 41 + 4 = 45 years old.


Solved, and thoroughly explained.


---------------


Actually,  it is an entertainment problem,  and a criterion for the right solution is
that it should not contain excessive calculations.




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