What is the total resistance of three loads offering 120500a

What is the total resistance of three loads offering 120,500,and 3000 resistance in a series circuit If you are provided with the resistance of a heating element and the voltage is known, which formula would you use to calculate the amperage of the load

Solution

6) three resistors R1,R2&R3 connected series , hence the total resistance wil be Rt=R1+R2+R3

                                                                                                                     =120+500+3000=3620 ohms

7) ampage of the load= (voltage)/resistance

                            I=V/R amperes