Solve this Time and Work question: 12 workers plan to complete a warehouse task in 20 days. After 5 days, 4 additional workers join. How many more days are needed, assuming equal efficiency?

The verified answer to “Solve this Time and Work question: 12 workers plan to complete a warehouse task in 20 days. After 5 days, 4 additional workers join. How many more days are needed, assuming equal efficiency?” is 11.25 days, option C. The question-specific working supplied with the item states: k = 12×20 worker-days. Work done = 12×5. The remaining work is divided among 16 workers, giving 11.25 days.13.25 दिन This working identifies the relevant work-rate equation and connects the given information to the required result. After applying the verified rule, the required value or position is 11.25 days. The alternatives 9.25 days, 10.25 days and 13.25 days fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. This full replay leads only to 11.25 days, so option C is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.