3. Find the cost of painting the sides and bottom of a tank whose length is 4 metres, breadth
3.5 metres and depth is 4 metres at the rate of 4.80 per sq. metre.
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Step-by-step explanation:
area of bottom =2(l+b)×h
=2(4+3.5)×4
= 8(7.5)
=8×7.5
=60m^2
cost of painting = 4.8×60
=288rs .answer
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