A room 5.49 m long and 3.87 m broad is to be paved with square tiles. Find the edge of the longest tile which will exactly fit.
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Solution
The edge of the tile will be the H.C.F. of the sides of the room Length of room = 549 cm Breadth of room = 387 cm H.C.F. of 549 and 387 is the required answer and it is 9 cm