Question

the floor of a room is covered with black and white tiles. There are 125 tiles in total our of which 65 are black. Area of 1 tile is 0.75m sq. Find:-
a) area covered by white tiles
b) area covered by black tiles
c) total area of the room

Answer 1

Answer:

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Answer 2

Given :–

Total number of tiles in the room = 125

Number of black tiles in the room = 65

Area of 1 tile = 0.75m²

As the room consists of only black and white tiles all total. So,

Number of white tiles = [ total number of tiles - number of black tiles]

Number of white tiles = [125 - 65] tiles

Number of white tiles = [60] tiles

a) Area covered by white tiles?

Number of white tiles = 60 tiles

Area of 1 tile = 0.75m²

Area of 60 tiles = 60 × 0.75m²

Area of 60 tiles = 45m²

b) Area covered by black tiles?

Number of black tiles = 65 tiles

Area of 1 tile = 0.75m²

Area of 65 tiles = 65×0.75m²

Area of 65 tiles = 48.75m²

c) Total area of the room?

Number of tiles in the room =125 tiles

Area of 1 tile = 0.75m²

Area of 125 tiles = 125×0.75m²

Area of 125 tiles = 93.75m²

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