# Robert is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M.?

9 km/hour

10 km/hour

11 km/hour

12 km/hour

Please do not use chat terms. Example: avoid using "grt" instead of "great".