Question

Express 35 m/s in km/hr.​

Answer 1

Answer:

At first convert metre into Km and second into minute and then minute into hour. We know that, 1000m=1Km. So, 1 metre=1/1000=10^-3 Km. Now, 60sec=1minute;1sec=1/60 minute. Again 60 minute=1 hour ; 1/60 minute = 1/(60*60)=1/3600 hour. Putting these values we get (35*10^-3)/(1/3600)=126 Km/h.

Answer 2

Answer:

25×18/5 = 5×18=90

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