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?	Select.
A) 8 kmph B) 12 kmph C) 10 kmph D) 14 kmph E) 15 kmph
<gadget id="calculator">15 + 10</gadget>
<output>25</output>

<gadget id="calculator">25 / 2</gadget>
<output>25/2 = around 12.5</output>

<result>B</result>
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?
divide(add(15, 10), 2)
let distance be x km travelling at 10 kmph reach at 2 pm travelling at 15 kmph reach at 12 noon = > time taken when travelling at 10 km - time taken when travelling at 15 km = 2 hrs x / 10 - x / 15 = 2 3 x - 2 x * 30 x = 60 time needed if travelled at 10 kmph = 60 / 10 = 6 hrs = > reach at 1 pm = > ( 6 - 1 ) = 5 hrs req speed = 60 / 5 = 12 kmph answer b