Question

Car A began a journey from a point at 9 am, traveling at 30 mph. At 10 am car B started traveling from the same point at 40 mph in the same direction as car A. At what time will car B pass car A

Answer 1

Car a 30(t+1)

Car b 40t

30(t+1) =40t

30t+30 =40t

30=10t

T = 30/10 = 3hours

9 +3 = 12 noon