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30 April, 11:16

Suzanne can work 10 math problems in 15 minutes. How many can she work in an hour and a half?

A) 45

B) 60

C) 70

D) 75

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Answers (1)
  1. 30 April, 11:41
    0
    Using ratio n proportion

    10-15

    x-90

    so 15x=900

    our x=60
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