Question

Trishika is 15 years old. 5 years ago, Jay was 3𝑥 times older than Trishika. What will be their total age after 3 years?

Answer 1

Trishika is currently 15 years old.

5 years ago, Jay was $3x$ times older than Trishika.
⇒ 5 years ago, Jay’s age was $3x(15-5)=30x$ years

Current age of Jay $=(30x+5)$ years
Age of Jay after 3 years $=(30x+8)$ years
Age of Trishika after 3 years = 18 years

Sum of the ages of Jay and Trishika after 3 years
$=30x+8+18=(26+30x)\text{years}$