SSC CPO 12 Mar 2019 Shift 1 Paper

The average of 16 numbers is 48. The average of the first 7 numbers is 45 and the average of the next 6 numbers is 52. If the 14^th number is 11 less than the 15^th number and is 5 more than the 16^th number, then the average of the 15^th and 16^th number is∶