Mr. Toh employed some painters and plumbers for his construction site. A plumber was paid $7 a day and a painter was paid $18 a day. Given that he employed 3 times as many painters as plumbers and a total of $244 was paid to these workers for the day, how many more painters than plumbers did Mr. Toh employ for his site?
| |
Painters |
Plumbers |
Difference |
Total |
| Number |
3 u |
1 u |
2 u |
|
| Value |
18 |
7 |
|
|
| Total value |
54 u |
7 u |
|
61 u |
Number of plumbers = 1 u
Number of painters = 3 x 1 u = 3 u
Total amount paid
= (3 u x 18) + (1 u x 7)
= 54 u + 7 u
= 61 u
61 u = 244
1 u = 244 ÷ 61 = 4
Number of more painters than plumbers
= 3 u - 1 u
= 2 u
= 2 x 4
= 8
Answer(s): 8
