Loyola Bank classifies its assets and liabilities and the period (maturity buckets) within which they are subject to repricing as on March 31, 2015 as follows:

What is the cumulative gap of the bank for interest-sensitive assets and interest-sensitive liabilities of maturity buckets up to 180 days as on March 31, 2015?

HERE IS MY SOLUTION:

  GAP                Cumulative gap          

One week                    5                                  5

8 to 25 days                 5                                  10

25 to 40 days             -15                                 -5

40 to 60 days            -10                                 -15

60 to 90 days              10                                 -5

90 to 180 days            20                                 15       

Please show steps.