Floor of a room measures 4.5 metres × 3 metres. Find the minimum number of complete
square marble slabs of equal size required to cover the entire floor.
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- To find the minimum number of square slabs to cover the floor, we have to find the greatest size of each such slab
- For this purpose, we have to find the HCF of 450 and 300. (Since 4.5 m = 450 cm and 3 m = 300 cm)
- Now HCF of 450 and 300 = 150 So the required size of the slab must be 150 cm × 150 cm. Hence, the number of slabs required = Area of the floor/ Area of one slab = 450 x 300/ 150 x 150 = 6
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