Mr. Hun employed some welders and painters for his construction site. A painter was paid $10 a day and a welder was paid $20 a day. Given that he employed 3 times as many welders as painters and a total of $210 was paid to these workers for the day, how many more welders than painters did Mr. Hun employ for his site?
| |
Welders |
Painters |
Difference |
Total |
| Number |
3 u |
1 u |
2 u |
|
| Value |
20 |
10 |
|
|
| Total value |
60 u |
10 u |
|
70 u |
Number of painters = 1 u
Number of welders = 3 x 1 u = 3 u
Total amount paid
= (3 u x 20) + (1 u x 10)
= 60 u + 10 u
= 70 u
70 u = 210
1 u = 210 ÷ 70 = 3
Number of more welders than painters
= 3 u - 1 u
= 2 u
= 2 x 3
= 6
Answer(s): 6
