James can eat 25 marshmallows is 20 minutes. Dylan can eat 25 in one hour. In how much time will the two eat 150 marshmallows?	Answers
A) 40 minutes.	B) 1 hour and 30 minutes.	C) 1 hour	D) 1 hour and 40 minutes.	E) 2 hours and 15 minutes
Rate =Output/Time   James Rate=25/20=5/4   Dylan Rate=25/60=5/12   Combined rate = 5/4+5/12= 20/12   Combined Rate*Combined Time= Combined Output   20/12*t=150   t=90 mins =&gt; 1 hr 30 min   ANSWER:1 hour and 30 minutes.
<result>B</result>
James can eat 25 marshmallows is 20 minutes. Dylan can eat 25 in one hour. In how much time will the two eat 150 marshmallows?