Answer:
60 mA and 45 mA

Explanation:
Application of Linear Equations
The voltage V measured in a resistive element of an electrical circuit or resistance R is

Where I is the current flowing through the resistor. Solving for I

There are two electronic circuit boards that have the same resistance. The Pro-X board runs on 120 volts and the Pro-I board runs on 90 Volts. We know that the current running through this last one is 15 mA fewer than the current through the Pro-X board. It means

Rearranging:

Operating

Or, equivalently

Thus, the current through the Pro-X board is

And the current through the Pro-I board is
