One carpenter can install 625 SF of ceiling tile in grid on one workday. How many hours of labor are needed to install 1 S.F.?
a. How many minutes does it take to install 1 S.F. of ceiling tile?
625 sf of ceiling tile in 1 workday i.e 24 hours
1 sf of ceiling tile in ?
1*24/625 hrs = 0.0384 hrs ~0.04 hrs
a. Minutes = 0.0384*60 = 2.304 minutes.
One carpenter can install 625 SF of ceiling tile in grid on one workday. How many...
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At most, how many bright fringes can be formed on one side of
the central bright fringe (not counting the central bright fringe)
when light of 625 nm falls on a double slit whose spacing is
11
9
12
10
8
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