(Solved): 1. (8 points) What is the delay for the following 30 bit adders? Assume that each two input gate de ...

1. (8 points) What is the delay for the following 30 bit adders? Assume that each two input gate delay is $10\mathrm{ns}$ and a full-adder delay is $40\mathrm{ns}$. (a) a ripple-carry adder (b) a carry look ahead adder with 5-bit blocks (c) a carry look ahead adder with 6-bit blocks (d) a prefix adder (round up to the nearest integer for your ${\log }_{2}N$ computation)