Question

A hall 40m long and 35 m broad is to be paved with square tiles.find the largest tile so that the tiles exactly fit and also find the number of tiles required

Answer 1

40 =2×2×2×5

35=7×5

HCF=5

side of tile =5

area of tile=5×5=25

area of room = 40×35=1400

no.of tiles=1400÷25=56

56 tiles needed

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