Question

the floor of a rectangular bathroom is covered with 56 square tiles of side 20cm in the breadth the floor of a rectangular bathroom is covered with 56 square tiles of side 20cm is the thread of the bathroom is 140 cm find the length of the area of the bathroom

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Answer 1

side of 1 square = 20cm

area of 1 square= 400cm2

total tiles =56

total area of room=total area of tiles = 400x56= 22400cm2

breadth of bathroom = 140cm

length = ?

area =length  x  breadth

area=     l        x    140

22400/140=  l

l= 160 cm

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