Question

Yochanan walked from home to the bus stop at an average speed of
\[5\]
\[\text{km/h}\]. He immediately got on his school bus and traveled at an average speed of
\[60\]
\[\text{km/h}\] until he got to school. The total distance from his home to school is
\[35\] kilometers, and the entire trip took
\[1.5\] hours.

Answer 1

Let x = distance walked (km). Then walking time x/5 and bus time (35 − x)/60, so
x/5 + (35 − x)/60 = 1.5.

Multiply by 60: 12x + 35 − x = 90 → 11x = 55 → x = 5 km.

So he walked 5 km (1 hour) and rode the bus 30 km (0.5 hour).