Question

at a camp, there was enough food to last 84 scouts for 12 days. out of the 84 scouts, 21 scouts did not turn up. if each scout who came ate the same amount of food each day, how many days would the food last?

Answer 1

Step-by-step explanation:

no of scouts who turned up = 84-21=63

let no of days it will last now be x

No of scouts= 84, 63

No of days= 12, x

This is a case of inverse variation

therefore,

$84 \times 12 = 63 \times x \\ \frac{84 \times 12}{63} = x \\ x = 16$

therfore the food will last for 16 days now