How do you calculate resistance with coulombs, time and j's?

The energy E in joules (J) is equal to the voltage V in volts (V), times the electrical charge Q in coulombs (C):

E(J) = V(V) × Q(C)

So

joule = volt × coulomb

or

J = V × C

What is the energy in joules that is consumed in an electrical circuit with voltage supply of 15V and charge flow of 4 coulombs?

E = 15V × 4C = 60J

i think it would be 5