Mathematics for IGCSE & O level - Time (Section 4 - No. 5)
How long is the oven on if it switches on at 3:45 p.m. and switches off at 6:20 p.m.?
2 hours 45 minutes
2 hours 35 minutes
3 hours 35 minutes
2 hours 25 minutes
Εξήγηση
Calculate the time difference: 6:20 - 3:45 = 2 hours 35 minutes.