"To reach point. B from point A, at 4 pm, Sara will have to travel at an average speed of 18 kmph.
Channel: Doubtnut
Date: 2020-04-05

"To reach point. B from point A, at 4 pm, Sara will have to travel at an average speed of 18 kmph. She will reach point B at 3 pm if she travels at an average speed of 24 kmph. At what average speed should Sara travel to reach point B at 2pm? 
a. 36 kmph 
 b. 28 kmph c. 25 kmph d. 30 kmph"