Mr. Lu employed some painters and welders for his construction site. A welder was paid $5 a day and a painter was paid $14 a day. Given that he employed 3 times as many painters as welders and a total of $141 was paid to these workers for the day, how many more painters than welders did Mr. Lu employ for his site?
| |
Painters |
Welders |
Difference |
Total |
| Number |
3 u |
1 u |
2 u |
|
| Value |
14 |
5 |
|
|
| Total value |
42 u |
5 u |
|
47 u |
Number of welders = 1 u
Number of painters = 3 x 1 u = 3 u
Total amount paid
= (3 u x 14) + (1 u x 5)
= 42 u + 5 u
= 47 u
47 u = 141
1 u = 141 ÷ 47 = 3
Number of more painters than welders
= 3 u - 1 u
= 2 u
= 2 x 3
= 6
Answer(s): 6
