A can do a piece of work in 4 days and B can do it in 12 days. In how many days will they finish the work, both working together?

🧠 Explanation:

A does a job in 4 days, B in 12; together, they finish in 3 days. Calculate: 1/4 + 1/12 = 1/3; 12/4 = 3. This helps students understand work-rate problems in math. It’s useful for math classes or project planning. Knowing work rates enhances problem-solving, ensuring better comprehension for academic work or general knowledge about labor calculations in real-world scenarios.