A crow leaves its nest, and flies back and forth from its nest to a nearby ditch to gather worms. The distance between the nest and the ditch is 150 meters. In one and a half hours, the crow manages to bring worms to its nest 15 times. What is the speed of the crow in kilometers per hour?
Pick one:
A) 1.5
B) 2.5
C) 3.5
D) 4.5
E) 5.5
The distance between the nest and the ditch is 150 meters.   15 times mean = A crow leaves its nest, and flies back ( going and coming back) i.e. 2 times we get total 30 rounds.   So the distance is  30 * 150= 
<gadget id="calculator"> 30 * 150</gadget>
<output>4_500</output>
4500.   4.5= ST   4500/1.5 = T , I think we can take 4500 meters as 4.5 km, then only we get T = 4.5.( 1000 meters = 1 km)   4.5)
<result>D</result>
A crow leaves its nest, and flies back and forth from its nest to a nearby ditch to gather worms. The distance between the nest and the ditch is 150 meters. In one and a half hours, the crow manages to bring worms to its nest 15 times. What is the speed of the crow in kilometers per hour?