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Answer the following questions.

$8M=3+5$

a$)$ Name a logical circuit that exhibits "race around condition". What is the solution for this problem?

b$)$ Mr$.$ Anand has a briefcase, that contains important company related documents with an interlock having to enter three digits in decimal number. Due to security reasons, his boss provides an octal code of $357$ which again need to be converted to hexadecimal equivalent and then the code to be converted to decimal. Provide the essential steps to find the code in each stage.