Question
Mr. Thia employed some painters and plumbers for his construction site. A plumber was paid $5 a day and a painter was paid $13 a day. Given that he employed 4 times as many painters as plumbers and a total of $171 was paid to these workers for the day, how many more painters than plumbers did Mr. Thia employ for his site?
4 m

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Mr. Thia employed some painters and plumbers for his construction site. A plumber was paid $5 a day and a painter was paid $13 a day. Given that he employed 4 times as many painters as plumbers and a total of $171 was paid to these workers for the day, how many more painters than plumbers did Mr. Thia employ for his site?