# A room is 680cm long and 320cm wide. it is to be paved with square tiles of side 40cm. how many such tiles will be required?

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Area of room = 680*320 = 217600sq.cm

Area of 1 square tile = (40)^2 = 1600sq.cm

Therefore, no. of tiles required

= Area of room / Area of 1 square tile

= 217600/1600

=**136 tiles**

Area of 1 square tile = (40)^2 = 1600sq.cm

Therefore, no. of tiles required

= Area of room / Area of 1 square tile

= 217600/1600

=

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

Area of room = 680 cm × 320 cm = 217600 cm²

Area of square tile = (40 cm)² = 1600 cm²

No. of tiles required = 217600/1600 =**136 tiles** Ans.

Area of square tile = (40 cm)² = 1600 cm²

No. of tiles required = 217600/1600 =