Mathematics for IGCSE & O level - Time (Section 4 - No. 6)
How many hours and minutes are there in 12.76 hours?
12 hours 76 minutes
12 hours 45 minutes
12 hours 45.6 minutes
12 hours 46 minutes
解释
0.76 x 60 = 45.6, rounded up to 46 minutes, therefore the answer is 12 hours 46 minutes.