Question

Walter gets up at $6:30$ a.m., catches the school bus at $7:30$ a.m., has $6$ classes that last $50$ minutes each, has $30$ minutes for lunch, and has $2$ hours additional time at school. He takes the bus home and arrives at $4:00$ p.m. How many minutes has he spent on the bus?

$30$

$60$

$75$

$90$

$120$

Solution:

There are $8.5$ hours between the time Walter catches the school bus and arrives at home.

This is a total of $60 \cdot 8.5 = 510$ minutes.

The total time Walter spends at school is $6 \cdot 50 + 30 + 2 \cdot 60 =$ $300 + 30 + 120 = 450$ minutes.

This means that Walter spends $510 - 450 = 60$ minutes on the bus.

Thus, B is the correct answer.

1997 AMC 8 Problem 8

Solution:

Problem 8 in Other Years