Question

Jack spends 1 4/5 times as long on his homework as jill. Last week, jill spent 7 3/4 hours doing homework. How long did jack spend doing homework

Answer 1

13.95 hours or 837 min

Explanation:

1+ 4/5=9/5 7+3/4=31/4

9/5=1.8; 31/4=7.75

1.8×7.75=13.95 hours

13.95×60min=837min