The cost of papering the wall of a room, 12 m long, at the rate of Rs. 13.50per square meter is Rs. 3402 The cost of matting the floor at Re. 9.50 per square metre is Rs.1026
Find the height of the room.
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21 metres is the answer because area of it is 252 I got it by I divided 3402 by13.50
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