Solve please........

Harish Kumar (IPCC) (475 Points)

24 July 2012  

Rent paid for the period from 1-10-2010 to 30-09-2011

was Rs. 12,000

rent paid for the period from 1-10-2011 to 30-09-2012

was Rs. 18,000

Rent to be debited to the P/L A/C for the year ended 31-03-2012 = ?

a) Rs. 15,000                     b) 13,000

c) Rs. 12,000                    d) 20,000

 

Ans is Rs 15,000

how to solve it.......

pls explain.........??