ICSE Class 9 Answered
how many tiles , each 12cm by 6cm are needed for a floor of a room 162cm long,144cm wide?
Asked by avneeshs440 | 20 Dec, 2018, 10:28: PM
Expert Answer
Length of a tile = 12 cm
Breadth of a tile = 6 cm
Area of a tile = l × b = 12 × 6 = 72 cm2
Area of the floor= l × b = 162 × 144 = 23328 cm2
No. of tiles = 23328/72 = 324
Answered by Yasmeen Khan | 21 Dec, 2018, 10:50: AM
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