Question

A motorboat covers a certain distance at a speed of 45 kmph in 10 hours. To cover the same distance in 15 hours, it must travel at the speed of

Answer 1

Distance= speed×time

=45×10

=450km

Speed= distance/time

=450/15

=30kmph

Answer 2

Let distance be x

So, distance=speed ×time

Therefore, x=45 x 10=450km

Now, 450km=speed×time

Therefore, speed=450/time

That is, speed=450/15=30km/h.