Subject: mathqa
Question: arun is travelling on his cycle and has calculated to reach point a at 2 pm 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 pm ?
Option: 
A: 10 kmph
B: 8 kmph
C: 14 kmph
D: 12 kmph
Answer: D