13. Mr. Sachin, a civil engineer undertook the construction of a multi storied hotel
to be completed in 140 days. He employed 180 laborers to complete it, At the
end of 76 days, only half of the work was done, so he hired 10 extra laborers and
completed the work. By how many days did he exceed the specified time? *
8 days
12.5 days
6 days
3days
Answers
Given : Mr. Sachin, a civil engineer undertook the construction of a multi storied hotel to be completed in 140 days. He employed 180 laborers to complete it, At the end of 76 days, only half of the work was done, so he hired 10 extra laborers and completed the work
To Find : By how many days did he exceed the specified time
Solution:
180 Labors did work for 76 Days
Work done = 180 * 76 man days
it was half of the Work
so work Left = 180 * 76 man days
Now workers = 180 + 10 = 190
More days required = 180 * 76 / 190
= 72
Total Days = 76 + 72 = 148
Work exceed by 148 - 140 = 8 Days
by 8 days he exceed the specified time
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