Question

1.geetha ran 2by3 of a km ,wherw as prerna ran 9 by 10 of a km i. one hour?who ran more in an hour. 2. what is a metre scale . be brainiest.

Answer 1

(1) By taking LCM of both equations we get
=>geetha run =20/30km
=>prerna run =27/30km
As we clearly know that 27/30 is more than 20/30.
Therefore prerna ran more in an hour.
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(2)SI Unit :-1000mm.. Metre scale is the International system of unit used as standard form