Mr. Toh employed some painters and plumbers for his construction site. A plumber was paid $6 a day and a painter was paid $16 a day. Given that he employed 4 times as many painters as plumbers and a total of $280 was paid to these workers for the day, how many less painters than plumbers did Mr. Toh employ for his site?
|
Painters |
Plumbers |
Difference |
Total |
Number |
4 u |
1 u |
3 u |
|
Value |
16 |
6 |
|
|
Total value |
64 u |
6 u |
|
70 u |
Number of plumbers = 1 u
Number of painters = 4 x 1 u = 4 u
Total amount paid
= (4 u x 16) + (1 u x 6)
= 64 u + 6 u
= 70 u
70 u = 280
1 u = 280 ÷ 70 = 4
Number of less plumbers than painters
= 4 u - 1 u
= 3 u
= 3 x 4
= 12
Answer(s): 12