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29 May, 19:05

Yan has already finished 3/5 of the 45 math problems he was assigned today. Each math problem took him 1 4/5 of a minute to complete. If this pace continues, how much more time, to the nearest minute, will the rest of the problems take him to finish?

A. 18 min

B. 27 min

C. 32 min

D. 43 min

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Answers (1)
  1. 29 May, 20:06
    0
    C. 3/5 of 45 = (45:5) * 3 = 27. 2/5 of 45 = 18 questions to complete. 4/5 of a minute = (60:5) * 4 = 48 seconds. 1 minute + 48 seconds = 1 min 48. 1 min 48*18 = 1944. 1944:60 = 32.4. Round or down and it gives 32 minutes.
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