Question
In a room, the sum of number of GLS bulbs and tube bulbs is 520, and the number of tube bulbs is 180 more than GLS bulbs. The number of LED bulbs in the room is 60% of number of tube bulbs in the room. Number of CFL bulbs in the room is 40% of the sum of number of GLS and LED bulbs in the room. What is the number of CFL bulbs in the room?
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