Question

Rowena walks 2 km at an average speed of xkm/h.

(i) Write down an expression, in terms of x, for the time taken.

Answer 1

2 / x seconds

Explanation:

d = 2 km

s = x km/hr

t = ?

t = d / s

= 2 / x seconds

Answer 2

The formula for time taken is:

`\to \bf \: time = (distance)/(speed)`

We are given that,

• distance = 2km
• speed = x km/h

So, The equation will be

`\tt\implies time = (2 \: km)/(x \: km/h)`