Jill is 12 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at $1.5 \mathrm{~km} / \mathrm{hr}$. They meet in 3 hours. How fast is Joe walking?
A) 2.5 kilometers/hour
B) 7.5 kilometers/hour
C) 5.5 kilometers/hour
D) 2 kilometers/hour

Question

Quizplus · Accepted Answer

In 3 hours, Jill walks $3 \times 1.5 = 4.5$ kilometers. Since they meet after 3 hours, the total distance covered by both is 12 kilometers. Thus, Joe covers $12 - 4.5 = 7.5$ kilometers in 3 hours, walking at a speed of $7.5 / 3 = 2.5$ kilometers/hour.

Jill Is 12 Kilometers Away from Joe 1.5 km/hr1.5 \mathrm{~km} / \mathrm{hr}1.5 km/hr

Jill Is 12 Kilometers Away from Joe $1.5 \mathrm{~km} / \mathrm{hr}$