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Susan can type 10 pages in 5 minutes. Mary can type 5 pages in 10 minutes. Working together , how many pages can they type in 30 minutes ?

Susan can type 10 pages in 5 minutes. Mary can type 5 pages in 10 minutes. Working together , how many pages can they type in 30 minutes ? Correct Answer 15

Susan 5 minutes 10 pages Susan 30 minutes (10×30)/5 = 60 pages Mary 10 minutes 5 pages Mary 30 minutes (5×30)/10 = 15 pages 60 + 15 = 75 pages

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