Question

: A car travels 90 km in 3 hours
(i) How long will it take to travel 450 km?
(ii) How far will it travel in 7 hours?

Answer 1

Answer:

This is a very simple question. How far does A travel in 1 hour if A travels 90 miles in 3 hours. one third of 3 = 1 . one third of 90 = 30 . So A travels 30 miles in 1 hour. How fast is A going, what is its speed ? 1 × 5 = 5 . 30 × 5 = how muxh distance A will cover in 5 hours. 120 ÷ 30 = how long it will take A to travel tgat distance.

Answer 2

Answer:

$\huge\red{A}\blue{N}\green{S}\pink{W}\orange{E}\red{R}$

The speed of the Car is,

$v = \frac{90km\h}{3}$

This can be written as

$v = \frac{90km\h}{3} \\ v = 30km\h$

We know that distance relation is

$d = vt \\ t = \frac{d}{v} \\ t = \frac{450km}{30kmh}$