It takes 5 minutes for a person to cross a 600-meter-long street. What is his current speed in kilometres per hour?
A. 3.6
B. 7.2
C. 8.4
D. 10
Answer:B
It takes 5 minutes for a person to cross a 600-meter-long street. What is his current speed in kilometres per hour?
A. 3.6 B. 7.2 C. 8.4 D. 10