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A wall with no windows is 11 feet high and 20 feet long. A
large roll of wall paper costs Rs 25 and will cover 60 sq
feet of wall. A small roll of wallpaper costs Rs 6 and will
cover 10 sq feet of wall. What is the least cost for enough
wallpaper to cover the wall?
a) Rs 132 b) Rs 75 c) Rs 120 d) Rs 99
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Answer Posted / sandeep kumar sahu
Area of the wall= 11*20= 220 sq. feet
now 220/60 = 3 ( reminder 40 sq. feet)
40/10= 4
25*3= 75rs
6*4= 24rs
total cost = 75+24=99rs
so correct and is 99.
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