The table below shows the price index in the economy at the end of four different years. 
(a) What is the rate of inflation in years 2, 3, and 4?
(b) Using the "rule of 70," determine how many years would it take for the prices to double at each of these three inflation rates?
Definitions:
Three-Phase Motor
A type of induction motor that operates on three-phase alternating current, known for its efficiency and consistent torque delivery.
Magnetic Field
A region around a magnetic material or moving electric charge within which the force of magnetism acts.
Synchronous Speed
The speed of the rotating magnetic field of an AC induction motor.
Squirrel-Cage Rotor
The rotor of an AC induction motor constructed by connecting metal bars together at each end.
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