Find the cost of papering the walls of a room 25 m
long, 20 m broad, 15 m high with a paper 5 m
wide at 2 per metre.
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Answer:
Step-by-step explanationArea of 4 walls = 2 (lb+ bh+ hl)+ lb
= 2 (25×20+ 20×15+15×25)+ 25×20
Divide the answer with 5
and then multiply with 2
You will get the answer
:
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