state gov OSSSC RI, ARI, AMIN, SFS, ICDS Supervisor Combined Mock Test 2023-25 Quantitative Aptitude Average
The mean of 19 numbers is 15. If the mean of the first 10 numbers is 17 and that of the last 10 numbers is 14, find the 10th number.
1
15.5
2
25
3
24
4
15