In Stop-and-Wait ARQ, let the probability of the transmitting side receiving a ACK after exactly one loss of ACK be P = 0. Find the Average...

In Stop-and-Wait ARQ, let the probability of the transmitting side receiving a ACK after exactly one loss of ACK be P = 0.021. Find the Average transmission time in terms of a block duration if : D = Round trip propagation delay, Rb= bit rate, n = number of bits in a block. (Hint: The probability for the considered case = Pack(1-Pack)