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Question
A takes twice as much time as B or thrice as much time as C to finish a piece of work . Working together , they can finish the work in 2 days . B can do the work alone in :
6 days
8 days
12 days
4 days
ANSWER : 1
Descrption
<p>Let's assume, </p> <p>A can do the work in x days</p> <p>B can do the work in x/2 days</p> <p>C can do the work in x/3 days</p> <p>Together they in 1 day do = ( 1/x + 2/x + 3/x) portion</p> <p>Now, 1/x + 2/x + 3/x = 1/2 </p> <p> 1 + 2 + 3/x = 1/2</p> <p>x = 12 </p> <p>B can do the work in = 12/2 = 6 days</p>
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