How long will a boy take to run round a square field of side 60 meters, if he runs at the rate of 9km/hr?
Choose the correct choice from the following answers
A) 96sec B) 45sec C) 1min D) 32sec E) 25sec
Speed = 9 km/hr = 9*5/18 = 5/2 m/sec   Distance = 60*4= 
<gadget id="calculator">60*4</gadget>
<output>240</output>
240m   Time taken= 240*2/5= 
<gadget id="calculator">240*2/5</gadget>
<output>96</output>
96sec   96secnswer is 96sec
<result>A</result>
How long will a boy take to run round a square field of side 60 meters, if he runs at the rate of 9km/hr?