In a Math test there were 60 problems which were to be done in 1 hour. A student completes 30 problems in 20 minutes, the average time in seconds for completing each of the remaining problems is _____?
- 45
- 60
- 80
- 90
Explanation
Total time = 1 hour = 60 minutesTime left = 60 - 20 = 40 minutes
Problems left = 60 - 30 = 30
Time per problem = 40/30 minutes = 80 seconds
Last verified on 08-03-2026
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