Mr. Soh employed some painters and welders for his construction site. A welder was paid $9 a day and a painter was paid $13 a day. Given that he employed 4 times as many painters as welders and a total of $122 was paid to these workers for the day, how many less painters than welders did Mr. Soh employ for his site?
| |
Painters |
Welders |
Difference |
Total |
| Number |
4 u |
1 u |
3 u |
|
| Value |
13 |
9 |
|
|
| Total value |
52 u |
9 u |
|
61 u |
Number of welders = 1 u
Number of painters = 4 x 1 u = 4 u
Total amount paid
= (4 u x 13) + (1 u x 9)
= 52 u + 9 u
= 61 u
61 u = 122
1 u = 122 ÷ 61 = 2
Number of less welders than painters
= 4 u - 1 u
= 3 u
= 3 x 2
= 6
Answer(s): 6
