Question

Neil travelled 36km at a speed of 8km/h Grant travelled 48km at a speed of 10km/h whose journey was quickest​

Answer 1

`\boxed {\tt Neil's \ journey}`

Step-by-step explanation:

We want to find who travelled faster, so we must find the time for each person's journey. Time can be found by dividing distance by speed.

Neil

`t=(d)/(s)`

Neil travelled 36 kilometers at a speed of 8 kilometers per hour.

`d= 36 \ km \\s= 8 \ km/hr`

`d=(36 \ km)/(8 \ km/hr)`

Divide (the kilometers or "km" will cancel each other out).

`d=4.5 \ hr`

Grant

`t=(d)/(s)`

Grant travelled 48 kilometers at a speed of 10 kilometers per hour.

`d= 48 \ km \\s= 10 \ km/hr`

`d=\frac{48 \ km} { 10 \ km/hr}`

Divide (the kilometers or "km" will cancel each other out).

`d=4.8 \ hr`

Neil's journey took 4.5 hours and Grant's took 4.8 hours. We want to find the journey that was quicker and 4.5 is less than 4.8. So Neil's journey was quicker.