Total number of ordered pairs in universal relation for set B= {α,β, gamma, delta} is _____

Total number of ordered pairs in universal relation for set B= {α,β, gamma, delta} is _____Total number of ordered pairs in universal relation for set B= {α,β, gamma, delta} is _____Cᴏᴘɪᴇᴅ :-)

The current flowing through a resistor connected in a circuit and the potential difference developed across its ends are as shown in the diagram by milliammeter and voltmeter readings respectively:

What are the least counts of these meters ?

What is the resistance of the resistor ?

see the attachment. :)