Mr. Chong employed some painters and plumbers for his construction site. A plumber was paid $6 a day and a painter was paid $19 a day. Given that he employed 3 times as many painters as plumbers and a total of $126 was paid to these workers for the day, how many more painters than plumbers did Mr. Chong employ for his site?
|
Painters |
Plumbers |
Difference |
Total |
Number |
3 u |
1 u |
2 u |
|
Value |
19 |
6 |
|
|
Total value |
57 u |
6 u |
|
63 u |
Number of plumbers = 1 u
Number of painters = 3 x 1 u = 3 u
Total amount paid
= (3 u x 19) + (1 u x 6)
= 57 u + 6 u
= 63 u
63 u = 126
1 u = 126 ÷ 63 = 2
Number of more painters than plumbers
= 3 u - 1 u
= 2 u
= 2 x 2
= 4
Answer(s): 4