12. One of the walls in an office has to be papered. If the length and breadth of the wall is 18 m and
15 m respectively, then find how much will it cost, if the cost of paper is 125 per square metre
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Step-by-step explanation:
The area of the wall = 18 ×15
= 270 m sq
the cost to papered the wall = 270 × 125
= 33,750
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