Mr. Yee employed some welders and painters for his construction site. A painter was paid $7 a day and a welder was paid $14 a day. Given that he employed 3 times as many welders as painters and a total of $147 was paid to these workers for the day, how many less welders than painters did Mr. Yee employ for his site?
| |
Welders |
Painters |
Difference |
Total |
| Number |
3 u |
1 u |
2 u |
|
| Value |
14 |
7 |
|
|
| Total value |
42 u |
7 u |
|
49 u |
Number of painters = 1 u
Number of welders = 3 x 1 u = 3 u
Total amount paid
= (3 u x 14) + (1 u x 7)
= 42 u + 7 u
= 49 u
49 u = 147
1 u = 147 ÷ 49 = 3
Number of less painters than welders
= 3 u - 1 u
= 2 u
= 2 x 3
= 6
Answer(s): 6
