How to solve Iift 2018 Question 103?

This question can be solved by applying the core concept explained in the solution above, followed by step-by-step calculation and elimination of options.

Which concept is tested in this question?

This question tests fundamental concepts commonly asked in IIFT exams.

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Iift 2018 Question 103

This is a detailed step-by-step solution for Iift 2018 Question 103. Understand the concept, common mistakes, and expert tips to solve similar questions in IIFT exam.

IIFT

Part of the work completed on Monday, Tuesday and Wednesday = 1/9 +1/12 + 1/15 = 47/180
Part of the work completed at the end of 9 days of work = 47(3)/180 = 47/60
remaining part of the work= 13/60 = 39/180
Part of the work completed by ram on 10th day = 1/9 = 20 /180
Part of the work completed by Rvi on 11th day = 1/12 = 15/180
remaining part of the work = 4/180
Ratan can do 12//180th of work on 12th day. Hence he needs 1/3rd of the 12th day.
Proportion of the completed work done by Ravi = 3(1/12) + 15/180 = 1/3

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