The solar car is made up of a solar panel (R1=0.4) which is connected in series to two charging controllers (R2=0.2). This controllers are connected in parallel. The controllers are connected in series to a battery (R3=0.6) and the battery is connected in series to three hub motors ( R4=0.7). This motors are connected in parallel. The motors are then connected in series to one big tyre (R5=0.8). Use this information to: (a) Draw the reliability model for this system. (b) Calculate the reliability of this system. [15]