a certain meter records voltage between 0 and 10 volts inclusive . if the average value of 3 recordings on the meter was 4 volts , what was the smallest possible recording in volts ?
n0 = 0.0
n1 = 10.0
n2 = 3.0
n3 = 4.0
t0 = n2 * n3
answer = t0 - n1
print(answer)