SSC CGL 12 Sep 2024 Shift 1 Paper

The average of 12 numbers is 48. The average of the first 5 numbers is 45 and the average of next 4 numbers is 52. If the 10^th number is 10 less than the 11^th number and is 5 more than the 12^th number, then the average of the 11^th and 12^th numbers is: