Question

A 600g packet of biscuits costs $2.40. Calculate How much would a 200g packet cost?

Answer 1

Answer:

$0.8

Step-by-step explanation:

There is a relation of direct proportion between quantity of biscuit and its cost.

Let 200 g biscuit will cost $x.

Therefore,

$\frac{600}{2.40} = \frac{200}{x} \\ \\ x = \frac{2.40 \times 200}{600} \\ \\ x = 0.4 \times 2 \\ \\ x = 0.8$