Saved Bookmarks
| 1. |
a plastic box 1.5m long,1.25m wide and 65cm deep is to be made.it is opened at the top.ignoring the thickness of the plastic sheet,determine : |
|
Answer» -STEP explanation:Length of box =1.5 m, BREADTH =1.25 m, Height=0.65 m⇒Area to be white-washed = Area of cuboid − Area of base.(i) Area of sheet requred =2lb+2bh+2lh−lb (i) Area of sheet requred =2lh+2bh+lb .[Box is open]==>>[2×1.5×0.65+2×1.25×0.65+1.5×1.25] m 2 ==>>(1.95+1.625+1.875)m 2 =5.45 m 2 ii) COST of sheet per m 2 area = Rs. 20Cost of sheet of 5.45m 2 area = Rs. 5.45×20 = Rs. 109HOPE THIS HELPS YOU ❕☺️ |
|