Mr. Loh employed some painters and plumbers for his construction site. A plumber was paid $9 a day and a painter was paid $18 a day. Given that he employed 5 times as many painters as plumbers and a total of $198 was paid to these workers for the day, how many less painters than plumbers did Mr. Loh employ for his site?
| |
Painters |
Plumbers |
Difference |
Total |
| Number |
5 u |
1 u |
4 u |
|
| Value |
18 |
9 |
|
|
| Total value |
90 u |
9 u |
|
99 u |
Number of plumbers = 1 u
Number of painters = 5 x 1 u = 5 u
Total amount paid
= (5 u x 18) + (1 u x 9)
= 90 u + 9 u
= 99 u
99 u = 198
1 u = 198 ÷ 99 = 2
Number of less plumbers than painters
= 5 u - 1 u
= 4 u
= 4 x 2
= 8
Answer(s): 8
