Ben is 121212 years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was 444 times as old as Ishaan. How old is Ishaan now?

Question

asked Jun 14, 2018 19.4k views

2 Answers

Below · Answer 1 · 2018-06-20T05:55:32+0000

Let's say Ben = X and Ishaan= Y.

Ben is 12 years older than Ishaan is equal to

X=12+Y

Three years ago, Ben was 4 times as old as Ishaan.

X-3=4*Y

Now, you have two incognitas and two equations, you can solve it.

$(12+Y)-3=4*Y\\12-3=4Y-Y\\9=3Y\\(9)/(3)=Y \\3=Y$

And now you can use this number to know Ben's age.

X=12+Y \\
X=12+3 \\
X=15