Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?	Choose the correct option:
A) 1/2 B) 2 C) 3 D) 5 E) 6
Given rate at which A &amp; B works at normal pace to complete 1 widget is (1/3).   Hence A's rate = B's rate = half of (1/3).   Hence A's rate is (1/6), so to complete 1 widget A requires 6 hours.   1/2NSWER:1/2
<result>A</result>
Machine A and Machine B can produce 1 widget in 3 hours working together at their respective constant rates. If Machine A's speed were doubled, the two machines could produce 1 widget in 2 hours working together at their respective rates. How many hours does it currently take Machine A to produce 1 widget on its own?