A chef preps 60 meals in 5 hours. A second chef can prepare 80 meals in 4 hours. If they work together, how many meals in 3 hours?
Correct answer: C. 96
- A. 84
- B. 90
- C. 96
- D. 108
Explanation
To solve the problem, determine the rate at which each chef works. The first chef prepares 60 meals in 5 hours, so their rate is 12 meals per hour (60/5). The second chef prepares 80 meals in 4 hours, with a rate of 20 meals per hour (80/4). Combined, their rates are 12 + 20 = 32 meals per hour. Over 3 hours, they can prepare 32 * 3 = 96 meals. However, this is incorrect. The correct calculation should be: (12 + 20) * 3 = 96 meals. Thus, Option D is incorrect and should be 96, not 108.
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