Solve the problem.
-Jill is 18 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1.5 kilometers per hour. They meet in 4 hours. How fast is Joe walking?
A) $5 \mathrm {~km} / \mathrm { hr }$
B) $3 \mathrm {~km} / \mathrm { hr }$
C) $4 \mathrm {~km} / \mathrm { hr }$
D) $1.5 \mathrm {~km} / \mathrm { hr }$

Question

Solve the problem.
-Jill is 18 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1.5 kilometers per hour. They meet in 4 hours. How fast is Joe walking? 
A) $5 \mathrm {~km} / \mathrm { hr }$
B) $3 \mathrm {~km} / \mathrm { hr }$
C) $4 \mathrm {~km} / \mathrm { hr }$
D) $1.5 \mathrm {~km} / \mathrm { hr }$

Quizplus · Accepted Answer

In 4 hours, Jill walks $4 \times 1.5 = 6$ kilometers. Since they meet after 4 hours, the total distance covered by both is 18 kilometers. Thus, Joe covers $18 - 6 = 12$ kilometers in 4 hours, which means Joe is walking at $12 \div 4 = 3$ kilometers per hour.

Solve the Problem 5 km/hr5 \mathrm {~km} / \mathrm { hr }5 km/hr

Solve the Problem $5 \mathrm {~km} / \mathrm { hr }$