Answer:
Sum.
Step-by-step explanation:
An electric motor can be defined as a machine which is typically used for the conversion or transformation of electrical energy into mechanical energy.
Basically, the mode of operation of an electric motor is simply to supply the motor with an alternating current (AC) voltage to one end, which is then used to power the axle (metal rod) at the other end of the motor.
Two motors can be made to run simultaneously in a synchronous manner through the use of a standby power system that provides the required level of power (alternating current and voltage).
Thus, if two motors are to be started at the same time, the standby power system must have the capacity to provide the sum of the starting kilovolt-ampere (KVA) values for the TWO motors.