Time and Work Practice Test 3 with solutions

Question : 23 of 40

Marks: +1, -0

Samir can complete a work in 12 days working 8 hours a day. Saurabh can complete the same work in 8 days working 10 hours a day. If both work together, working 8 hours a day, in how many days can they complete the work?

$6 6/{11}$ days
$6 5/{11}$ days
$5 6/{11}$ days
$5 5/{11}$ days

Validate

Solution:

(Samir + Saurabha)'s 1 day's work, when both working 8 hours a day =

1/{12}+1/8 × 8/{10}

1/{12}+1/{10}

{11}/{60}

Hence, when they working 8 hours a day they will complete the work in =

{60}/{11}

5 5/{11}

days.

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