CBSE Class 9 Answered
the paint in a certain is sufficient to paint an area equal to 5.25 m sq. How many closed rectangular boxes of dimensions 27.5 cm *16 cm *10 cm can be painted out of this container?
Asked by harmeetc405 | 30 Dec, 2018, 07:40: PM
Expert Answer
It is assume that only outer surfaces of rectangular boxes are to be painted.
area that can be painted = 5.25 sq.m = 5.25×100×100 sq.cm
total surface area of one rectangular box = 2(27.5×16 + 16×10 + 10×27.5) sq.cm = 1750 sq.cm
no. of boxes that can be painted =
Answered by Thiyagarajan K | 31 Dec, 2018, 12:00: PM
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