The following application was developed to allow a user to guess a number between 0 and 10. If a number larger than 10 is entered, the number is accepted.How can this error be removed?

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BlackTom AI · Accepted Answer

To approach this debugging question, I’ll evaluate what the current condition checks and how it governs acceptance of input beyond 10. Option a: change the condition of “number < 0 or number > 10” to "not (number < 0 or number > 10)”. This reformulation makes sense because it inverts the entire range check, effectively allowing only numbers within 0 to 10 inclusive. It ensures that any value outside the 0–10 range is rejected, which matches the intended behavior. By applying De Morgan’s laws, you get a proper inclusive boundary where numbers between 0 and 10 pass, and any outside values fail. Option b: change the condition of “number < 0 or number > 10” to “number < 0 and number > 10”. This is logically impossible to satisfy: a number cannot be simultaneously less than 0 and greater than 10. Therefore this condition would always evaluate to false, causing the program to reject all inputs, including valid ones, which is not correct for the goal of filtering out invalid values. Option c: use repeat block instead of repeat until block. Switching between repeat and repeat until affects the loop’s exit condition but does not fix the logic that determines whether a number is accepted or rejected. If the loop only repeats until a condition is met but the condition itself remains the same (learning about valid range), you still might allow invalid numbers unless the condition is redefined. In short, changing the loop structure without correcting the boundary logic does not address the acceptance of numbers > 10. Option d: delete say block. Removing the message that informs the user about an invalid input does not prevent the invalid number from being accepted or provide feedback. The underlying logic would still permit numbers outside 0–10 unless the condition is rewritten. This option ignores both user experience and the actual range validation requirement. Overall, each alternative beyond option a either misapplies logic, eliminates necessary feedback, or fails to address the boundary condition. The intended fix is to redefine the boundary check so that the program accepts only numbers within 0 to 10, or rejects others, which is achieved by option a.

The following application was developed to allow a user to guess a number between 0 and 10. If a number larger than 10 is entered, the number is accepted.How can this error be removed?

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