A 7490, configured to count 0 to 4, and a 7493, configured to ...

[renzo156]

A 7490, configured to count 0 to 4, and a 7493, configured to count 0 to 10, are connected so that the Q3 output of the 7490 is wired to the input of the 7493. What is the modulus of the total circuit?
 
  A) MOD-44 B) MOD-40 C) MOD-50 D) MOD-55

Question 2

Which logic function can be implemented by connecting an inverter to the output of an AND gate?
 
  A) AND B) NAND C) OR D) NOR

[mathjasmine]

Answer to Question 1

D

Answer to Question 2

B