Mr. Choo employed some plumbers and painters for his construction site. A painter was paid $6 a day and a plumber was paid $19 a day. Given that he employed 4 times as many plumbers as painters and a total of $164 was paid to these workers for the day, how many less plumbers than painters did Mr. Choo employ for his site?
|
Plumbers |
Painters |
Difference |
Total |
Number |
4 u |
1 u |
3 u |
|
Value |
19 |
6 |
|
|
Total value |
76 u |
6 u |
|
82 u |
Number of painters = 1 u
Number of plumbers = 4 x 1 u = 4 u
Total amount paid
= (4 u x 19) + (1 u x 6)
= 76 u + 6 u
= 82 u
82 u = 164
1 u = 164 ÷ 82 = 2
Number of less painters than plumbers
= 4 u - 1 u
= 3 u
= 3 x 2
= 6
Answer(s): 6