Using the repeated distribution method, solve the following problem:

(a) Service department A-expenses are to be allocated in the ratio 30:30:20:20 to production departments X, Y and Z and the service department B. (b) Service department B-expenses are to be allocated in the ratio 50:20:20:10 to production departments X, Y and Z and the service department A. (c) Expenses incurred: Production departments Y Z Service departments AB Rs 50,000 Rs 20,000 Rs 25,000 Rs 5,000 Rs 8,000