Question

Neeta's volvo bus take $50$ boys to a field trip. Some of them take Rs.$20$ tickets while the rest take Rs.$45$ tickets. If the total cost of the tickets purchased is Rs.$2000$, how many boys took the tickets of Rs.$20$ each?

• A. $7$
• B. $10$
• C. $12$
• D. $15$

Answer 1

Answer: (B)

$10$

Given: Total no of boys who went for trip $=50$

Let, the number of students who bought $Rs.20$ tickets $=x$

$\therefore$ number of students who bought $Rs.45$ tickets $=50-x$

A.T.Q,

$20x+45(50-x)=2000$

$⟹20x+2250-45x=2000$

$⟹-25x=2000-2250$

$⟹-25x=-250$

$⟹x=\frac{-250}{-25}$

$⟹x=10$

$\therefore$ $10$ boys purchased $Rs.20$ tickets.