Little Law can be expressed in two different forms (depending on whether you are looking at the text-book or literature). In the text book you will see;            TH = CT x WIP where Throughput time = Work-in-progress =Cycle time =Group of answer choicesWork-in-progress =Throughput time =Cycle time =

Little's Law is a fundamental principle in queueing theory that states the average number of customers in a stable system (over some interval) is equal to their average arrival rate, multiplied by their average time in the system. It can be expressed as:

L = λW

where: L = average number of customers in the system (equivalent to Work-in-Progress or WIP in manufacturing context) λ = average arrival rate of customers to the system (equivalent to Throughput or TH in manufacturing context) W = average time a customer spends in the system (equivalent to Cycle Time or CT in manufacturing context)

So, in the context of your question, the terms can be defined as follows:

Throughput time (TH) = average time a unit spends in the system Work-in-Progress (WIP) = average number of units in the system Cycle time (CT) = average time between completions of successive units

Therefore, the equation TH = CT x WIP is a representation of Little's Law.