Operators get $140 per day and laborers get $100 perday. If 35 peoole were hired and payroll was $4820, how many Operators were employed abd how many laborers?

Answer 1

O=OPERATORS

L=LABORERS

140O+100L=4820

O+L=35

O=35-L

140(35-L)+100L=4820

4900-140L+100L=4820

4900-40L=4820

80-40L=0

80=40L

L=2

O=35-L

O=35-2

O=33

The number of operators is 33 and the number of laborers is 2.