Time and Work Questions

Ajay can do a painting in 12 days. Amit is 70% more efficient than Ajay. What is the number of days Amit would need to finish the same painting?

P and Q can do a project in 12 and 12 days respectively. In how many days can they complete 50% of the project if they work together?

If 5 person together can make 5 mats in 5 hrs, then 10 person in 10 hours will make

A, B and C can finish a job working alone in 12, 8 and 24 days respectively. In how many days they can finish the job if they worked together?

A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is

Vikram and Vivek can finish a work in 50 days. They worked together for 20 days and then left. How much work has been done by them?

A and B together can complete a piece of work in 12 days. They worked together for 5 days and then A alone finished the rest work in 14 days. A alone can complete the work in _____.

A mason can build a wall in 70 hours. After 7 hours he takes a break. What fraction of the wall is yet to be built?