Mathematics for IGCSE & O level - Time (Section 2 - No. 14)
Nathlee needs 35 minutes to prepare food for cooking. He is ready to start cooking at 6:15 p.m. At what time did he start preparing the food?
5:40 p.m.
6:50 p.m.
6:00 p.m.
5:30 p.m.
Explanation
Work backwards from 6:15 p.m. Subtract 15 minutes before 6:00 p.m. Then 20 more minutes, it is 5:40 p.m.
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