Charge flowing through a conductor is given by Q=(3t square +4t). Calculate the current at a time t=1s. Also calculate average value of current during this interval?

To get current at t=1 differentiate equation wrt time then put the=1. To get average current get the total charge flown through circuit by getting the difference of charge at t=1 and t=0. Then divide it with time interval ie 1 second.