Question

If for a group of 32 students the food lasts for 45 days then for how many days wiil the same food last if the number of students become 72

Answer 1

it's a case of indirect variation so..
let the days be x
a/q 32×45=72×x
=1440÷72=x
So x=20
therefore the food would last 20days...
hope it helps...