John buys 3 barbells and gives $850 and gets $40 in change.  How much did each barbell cost? Let's think step by step and output the final answer after "####".
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The total price of the barbells was 850-40=$<<850-40=810>>810
So each one cost 810/3=$<<810/3=270>>270
#### 270
John buys 3 barbells and gives $850 and gets $40 in change.  How much did each barbell cost?
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