A stenographer has been asked to fill out 500 forms. She fills 25 forms in half an hour. Another stenographer joins her, who fills 45 forms per hour. How long will the entire assignment take?

A. 5 hours

B. 5.5 hours

C. 4.5 hours

D. 6 hours

Correct Answer: B. 5.5 hours

Explanation: First stenographer: 50 forms/hour; Second: 45 forms/hour; Total = 95 forms/hour; Time = 500 ÷ 95 ≈ 5.5 hours.

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