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,
[tex] \frac{600}{2.40} = \frac{200}{x} \\ \\ x = \frac{2.40 \times 200}{600} \\ \\ x = 0.4 \times 2 \\ \\ x = 0.8[/tex]
