Emilia takes 80 minutes to type 24 pages. Jamie takes 30 minutes to type 18 pages. If they work together, how long will it take them to type a total of 108 pages? Answer in minutes. *
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Answer:
120 minutes
Step-by-step explanation:
Let's first calculate the efficiency of each.
Emilia takes 80 minutes to type 24 pages, so her efficiency is 24 ÷ 80 = 0.3 (pages per minute).
James takes 30 minutes to type 18 pages, so his efficiency is 18 ÷ 30 = 0.6 (pages per minute).
Add them together.
0.3 + 0.6 = 0.9 (pages per minute).
This means when James and Emilia type together, they type 0.9 pages per minute
Divide.
108 ÷ 0.9 = 120.
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