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Saleem can type a 20 page document in 40 minutes. Aysha can type it in 30 minutes. and Raheel can type it in 24 minutes. Working together. how much time will it take them to type the same document?
Wiki User
∙ 14y ago
Saleem types (20/40) = 1/2 page per minute.
Aysha types (20/30) = 2/3 page per minute.
Raheel types (20/24) = 5/6 page per minute.
Working together ... IF they can split up the paper appropriately and avoid any duplication ... they can type
(1/2) + (2/3) + (5/6)
= (3/6) + (4/6) + (5/6)
= (12/6) = 2 pages per minute.
At 2 pages per minute, they will require (20/2) = 10 minutes to type the same document.
Wiki User
∙ 14y ago
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