Answer:
48min
Explanation:
Gluten intolerant students eat chicken-stuffed peppenrs.
Vegetarian eat pita breads
There are 5 gluten intolerant and 10 vegetarian people.
To make 10 pita breads, it is necessary 10x (hours)
To make 5 chicken stuffed peppers, it is neccesary 5*2x=10x (hours)
He has 8 hours, i.e,


or 0.4
2/5 of 60 min (1 hour) are 24 minutes.
However to make each chicken stuffed peppers he can take 24*2=48 min