How many seconds does Puja take to cover a distance of 500 m, if she runs at a speed of 30 km/hr?	Choose the correct choice from the following answers
A) 60 sec  B) 82 sec  C) 95 sec  D) 100 sec  E) 120 sec
Hint:   Time =	Distance / Speed   We see that the distance is given in metres while the speed is given in km/hr and the answer is asked in seconds.   So, convert km/hr into m/s by multiplying	5 /18	m/s to the given value of speed.   30	km / hr	= 30 x	5 /18	=	75 /9 m/sec   i.e. Place these values in the formula:   Time = 500 x	9 / 75= 60 sec   60 secNSWER IS 60 sec
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How many seconds does Puja take to cover a distance of 500 m, if she runs at a speed of 30 km/hr?