a)) Clock period of entire datapath= max of all time period=305pesc
b)) Through put will be number of instruction executed per second
So through put=1/305ps=32.78 million instruction per second
c))
Speed up= Twp/Tp
Twp(Time taken without pipeline)=n*(305+275+280+305+250)
Tp=1 x 4 x 305 + (N-1) x 305 x 1
Speed up=Twp/Tp
Speedup=1415N/305N+915
if N is infinite or very large
Speed up=4.64