MHTCET 20 Apr 2026 Shift 2 Paper

Concept:In Boolean algebra, the $+$ symbol represents the OR operation.Explanation:The expression $A+B=Y$ means $Y$ is true when at least one of $A$ or $B$ is true.This is the definition of the logical OR operation.The truth table for $Y=A+B$ is:From the table, $Y$ is $1$ in all cases except when both $A$ and $B$ are $0$.So $Y$ exists when $A$ exists or $B$ exists, and it also exists when both $A$ and $B$ exist.This matches the statement given in option D.Answer:Option D: $Y$ exists when $A$ exists or $B$ exists or both $A$ and $B$ exist.