GATE ME 2016 Set 3 — Question 5
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General Aptitude → Quantitative Aptitude → Time & Work
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Question
and are working in shifts in a team to finish a project. works with twice the efficiency of others but for half as many days as worked. and have 6 hour shifts in a day, whereas and have 12 hours shifts. What is the ratio of contribution of to contribution of in the project?
Correct answer
(B) 1:2
Solution
Let the efficiency of be . Given has twice the efficiency, efficiency of . Let the number of days worked be . Then worked for days. Shift hours are given as hours/day and hours/day. Contribution is calculated as Efficiency Days Hours per day. Contribution of . Contribution of . The ratio of contribution of to is . Thus, the correct option is (B).
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