Consider a router buffer preceding an outbound link. In this problem you will use Little's formula, a famous formula from queuing theory. Let N denote the average number of packets in the buffer plus the packet being transmitted. Let a denote the rate of packets arriving at the link. Let d denote the average total delay (i. e., the queuing delay plus the transmission delay) experienced by a packet. Little's formula is N = a · d. Suppose that on average, the buffer contains 105 packets (in addition to the packet currently being transmitted) and the average queuing delay is 1.75 sec The links transmission rate is 60 packets/sec. Using Little's formula, what is the average packet arrival rate, assuming there is no packet loss?