How many AND gates are present inside a 5-bit carry look ahead ge

How many AND gates are present inside a 5-bit carry look ahead ge
| How many AND gates are present inside a 5-bit carry look ahead generator circuit?

A. 13

B. 15

C. 16

D. 18

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Right Answer is:

SOLUTION

Toal AND gates for a n-bit carry look ahead generator is 1+2+3+….+n=