A train is 700 meter long is running at a speed of 21 km/hour. In what time will it pass a bridge of 130 meter length?	Choose the correct choice:
A) 142.286  B) 251.228  C) 34  D) 200  E) 150.627
Speed = 21 Km/hr = 21*(5/18) m/sec = 35/6 m/sec   Total distance = 700+130= 
<gadget id="calculator">700+130</gadget>
<output>830</output>
830 meter   Time= Distance/speed   = 830 * (6/35) = 142.286 seconds.   142.286nswer: 142.286
<result>A</result>
A train is 700 meter long is running at a speed of 21 km/hour. In what time will it pass a bridge of 130 meter length?