Please somebody help me i need the answer

B 2.25

Step-by-step explanation:

We know so far that Ishaan is 14 years older than Christopher. So what you need to do is divide 13 by 3 because Ishaan is 3 times as old as  Christopher. 

14 ÷ 3 =  4.6.

Ages can't really be decimals so a simple solution is to round it to the nearest whole number: which would be 5.

Now we know that Christopher is about 5 years old. 

To find Ishaan's age add 5 and 14 together.

Which is 19.

Remember though that because Christophers age is rounded change the equals sign from this:

=

to this:

≈.
This sign means approximately 

Ishaan's is ≈ 19 years old.

I hope this helps! :)