Question

if the distance in the time taken to cover a certain distance at 6kmph and at 10kmph is 30 minutes ,find the distance

Answer 1

Average velocity will be = 2*6*10 / 6+10

= 7.5 kmph

so distance travelled in 30 minutes will be = 7.5 * 0.5

= 3.75 km.

here time = 0.5 hr i.e 30 min.