Problem Solving (PS) | Re: A family has a child every j years. The oldest child is t years old.

Hello Urshi,

Thanks for bringing this up!

IMHO, if anything, this question cannot be clearer; especially when you have this statement in the question - "The oldest child is t years old".

This means, the question is talking about the oldest child being 't' years old currently. All the answer options also use 't' in the same context. So, quite obviously, the question wants us to find out the expression which gives us the number of children, 2 years from now.

If we had to calculate
...

---