Mathematics for IGCSE & O level - Time (Section 3 - No. 20)
What is 30 hours 35 minutes in hours using decimals, to 2 decimal places?
30.35 hours
30.58 hours
30.57 hours
30.65 hours
Giải thích
35/60 = 0.5833333, so 30 hours and 35 minutes is 30.58 hours, to 2 decimal places.