Time & Work

Worker A can complete a work in 20 days, Worker B in 30 days, and Worker C in 60 days. All three work together for 6 days. Then Worker B leaves. After that, Worker A works every day, but Worker C works on alternate days starting the next…

A can complete a work in 12 days. B can complete it in 18 days. In how many days can they complete it together?

raj can complete a piece of work in 10 days. How many days will raj take to complete the work if he works at half of his usual efficiency?

Baabu (Grandfather) can complete a work in 10 days, and Varun (Grandson) can complete the same work in 15 days. If they work together, in how many days will they finish the work?

Praveen can complete a work in 8 days, and his friend Selvaprasath can complete the same work in 12 days. If they work together, in how many days will they finish the work?

Surya can complete a work in 15 days and his Future Wife can complete it in 10 days. In how many days will they complete the work together?

A can complete a work in 20 days and B can complete it in 30 days. In how many days will they complete the work together?