Post-UTME Mathematics 2017 Objective — Question 9
Question 9 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2017 Objective paper, with the correct answer and a full explanation.
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Tara can develop 2 rolls of film in about 18 minutes. At this rate, how long will it take her to develop 8 rolls of film?
- A. 42 minutes
- B. 1 hour 12 minutesCorrect
- C. 1 hour 20 minutes
- D. 1 hour 44 minutes / E. 2 hours 24 minutes
Explanation
8 rolls = 4 x (2 rolls); 18 x 4 = 72 minutes = 1 hour 12 minutes.
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