Question

Cindy leaves her house by bike at 1 p.m and rosy leaves her house by bike at 2p.m Their houses are 120 km in 1 hour and rosy travels in 1 hour what time will they meet

Answer 1

They will meet at 5:00 pm
Work:
r travels for x hours and c travels for x+1 hours
20x+15(x+1)=120
35x+15=120
35x=105
x=3
they meet at five o'clock