A man can complete a task in 20 days by working 5 hours per day. How many hours per day must he work to finish it in 10 days?
Correct answer: C. 10
- A. 8
- B. 9
- C. 10
- D. 12
Explanation
This is correct because the total work is 20 × 5 = 100 hours, and to complete this in 10 days, he must work 100 ÷ 10 = 10 hours/day.
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Logical problems present several conditions about people, objects, events or choices and require their possible arrangements to be tested. They cover constraint-based reasoning, rankings, matching, grouping, scheduling and elimination, with attention to the difference between a complete solution and a possibility that merely satisfies one condition.
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