A box made of sheet metal costs rupees 2820 at the rate of rupees 30 per square metre if the box is 5 M long 4 m wide find its height
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T. S. A of box =2(lb+bh+hl)
2820/30=2(4*5+5h+4h)
94=40+9h
54/9=h
h = 6m
2820/30=2(4*5+5h+4h)
94=40+9h
54/9=h
h = 6m
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total surface area of cuboid 2(lb+bh+lh) answer is 154.4
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