Question

Avril cycles 10 km at x km/h and then 14 km at y km/h. Express the time for the journey as a single fraction

Answer 1

Explanation:

It is given that,

Avril cycles 10 km at x km/h and then 14 km at y km/h.

We need to express the time for the journey as a single fraction.

We know that,

Speed = distance/time

or

time = distance/speed

Here, total distance = 10 +14 = 24 km/h

Total speed = x+y

So,

`t=(24)/(x+y)`

Hence, this is the required solution.