If A works twice as fast as B, and B takes 12 days, A will take:
Correct answer: B. 6 days
- A. 4 days
- B. 6 days
- C. 8 days
- D. 10 days
Explanation
When someone works twice as fast as another person, they complete the task in half the time. Since B takes 12 days to finish the work, A, being twice as fast, will take 6 days (12 ÷ 2 = 6). The other options represent incorrect interpretations of A's speed relative to B: 4 days implies A is three times faster, 8 days suggests A is 1.5 times faster, and 10 days indicates A is marginally faster than B.
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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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