"Question $5$:

$($a$)$ A program acce a numeric input from the user with a range from $100$ to $1000.$ How many equivalence classes exist? Write the examples by mentioning both the valid and invalid classes.

TH$20($b$)$: What will be the lower boundary, on boundary and upper boundary values to be tested for boundary value analysis $($as mentioned in question $1$ part a$)?$

$($c$)$: Write down two $$positive$$ and $$negative$$ test cases to validate the condition mentioned in part $($a$)."$