38. Square tiles of side 20 cm are to be laid on the floor of a room 10m b 4.5m How many tiles will be needed ?
F

Question

38. Square tiles of side 20 cm are to be laid on the floor of a room 10m b 4.5m How many tiles will be needed ? Find the cost of putting the tiles at Rs. 131.40 per tile. ​

Ruby · Answer

Answer:   hope it is help ful to you     Step-by-step explanation:   Dimnesions of the roos is 10m x 4.5m = 1000cm x 450 cm  Area of the room = 1000 x 450 cm2 = 450000 cm2  Length of each side of the square tile = 20 cm  Area of tile = 20 x 20 cm2 = 400 cm2   No. of tiles to be laid = 450000/400 = 1125  Cost of one tile = Rs. 131.40  Total cost = 1125 x 131.40 = Rs. 147825

Audrey

625208*50
By suitable rearrangements
By all explaination

5) By using determinant show that the following points are collinear.
A(5,0), B(10-3), C(-5,6)

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38. Square tiles of side 20 cm are to be laid on the floor of a room 10m b 4.5m How many tiles will be needed ?F