Multiple choice

There are three persons A, B & C working in a factory; A is on leave on Monday and Saturday in every week, B works from Monday to Thursday only in every week while C works in alternate days of week starting from Tuesday. When only two person works on same day both use their half of their efficiency. If they work individually A can do a work in 10 days, B in 20 days & C in 40 days .As work starts from 10th Feb which falls on Monday, then on which day work will complete? (Saturday is half day and Sunday is always off.)

  1. Saturday

  2. Tuesday

  3. Wednesday

  4. Friday

  5. None of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

A works Mon-Fri (off Mon, Sat), B works Mon-Thu, C works Tue, Thu, Sat. Individual rates: A = 1/10, B = 1/20, C = 1/40. Work pattern from Feb 10 (Monday): Mon(Tue) = 0.15, Wed = 0.225, Thu = 0.175, Fri = 0.2, Sat(Tue) = 0.15, Sun = 0, Mon(Wed) = 0.225, Tue = 0.175. Total by Wed Feb 18: 1.3 (completed Tuesday afternoon). Answer should be Tuesday, but option E is correct since Wednesday is listed but completion happens Tuesday.

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