Uncle Li went to a furniture store to buy chairs. Each chair was 60 yuan. He paid 300 yuan and got back 40 yuan. How many chairs did Uncle Li buy back?
李叔叔到家具店买椅子，每把椅子60元，他付了300元，找回40元，李叔叔买回几把椅子？
<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<result>6</result>