Question : Working 5 hours a day, A can complete a task in 8 days, and working 6 hours a day, B can finish the same task in 10 days. Working 8 hours daily, they can jointly complete the task in _____.

Question : A can complete $\frac{1}{3}$rd of a task in 7 days and B can complete $\frac{2}{7}$th of the same task in 10 days. In how many days can A and B together complete the task?

Question : A worker completes $\frac{3}{5}$th of a task in 12 days. In how many days will he complete $\frac{3}{4}$th of the task?

Question : 8 men can complete a task in 45 days. 8 women can complete the same task in 18 days. In how many days will 5 men and 8 women, together, complete the same task?