A, B, and C together can finish a piece of work in 30 days. A and B together take 9 days less to complete the work than B and C together. If C and A together can complete the work in 60 days, in how many days can A alone finish the same work?

If 18 men working 7 hours a day can prepare 14 school uniforms in 20 days, then in how many days can 12 men working 6 hours a day prepare 18 school uniforms?

Raju alone can complete a work in 36 days, and Raj alone can complete the same work in half the time taken by Raju. How many days will they take together to complete 14 of the total work?