1) Draw the diagram of 6:1 mux constructed using 2:1 muxes using a minimum of 2:1 muxes.

2) Add the numbers 11010110 , 00101011 and 10011110 using carry save technique.

3) Draw the wallace tree diagram for adding five 8-bit numbers labelling each wire with its width and each node(box) with same number of CSA it contains.