Question

A room is 7m 20 cm long and 5m 20 cm broad . If square tiles have to be laid in in such a way that an exact number of tiles fit in and no tile has to be cut, what is the greatest length of the side of the square tiles ?

Answer 1

Answer:

Hope my answer helps....

Explanation:

First

Convert the 7 m

= 7m + 20 cm

= 700 cm + 20 cm

= 720 cm

Convert 5 m

= 5m + 20 cm

= 500 cm + 20 cm

= 520 cm

then find the HCF

720 = 2 * 2 * 2* 5

520 = 2 * 2 * 2 * 5

final ans is = 40 cm

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Answer 2

Answer:

A room is long= 7m 20cm = 700cm+20cm=720cm

A room is broad= 5m 20cm=500cm+20cm=520cm

720= 2*2*2*2*3*3*5

520=2*2*2*5*13

HCF= 2*2*2*5=40cm