Stuck on this question, cannot understand how they got this answer:
A car battery is labelled '50Ah'. This means that it can supply a current of 50A for one hour.
a) For how long could the battery supply a continuous current of 200A needed to start the car?
b) Calculate the charge which flows past a point in the circuit in this time
Have to use the equation: Charge= Current x Time
I got a) 4 hours and b) 2.88x10^6 C
However, the answer is a) 0.25h and b) 1.8x10^5 C