Subject
Bank Exam
Topic
Bangladesh Bank 2009 (AD)
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?
ক)
75খ)
20গ)
25ঘ)
65Explanation
In one minute, Susan, does one page: (5/10)=1/2 Mary, does one page: (10/5)=2 So, both do : Net-work: (2+1/2)=5/2 Thus , 1 minute work done: 5/2 So, In 30-minutes : 30 * (5/2) = 75 pagesRelated questions
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