A carpenter makes a table in 4 hours. If he works 25% faster using electric tools, time needed per table is:
Correct answer: C. 3.2
- A. 2.5
- B. 3
- C. 3.2
- D. 3.5
Explanation
To determine the new time required when a carpenter works 25% faster, we first understand that working 25% faster implies that the carpenter's work rate increases by a factor of 1.25. Therefore, the time taken should be reduced by this factor. The original time is 4 hours, so the new time is calculated as follows:New time = Original time ÷ 1.25 = 4 hours ÷ 1.25 = 3.2 hours.Hence, the correct answer is Option C. Option A suggests an incorrect reduction, Option B ignores the precise calculation of 25% faster, and Option D overestimates the reduction.
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