state gov DSSSB Warder, Assistant Superintendent, Matron Mock Test 2024 Quantitative Aptitude Average
The average of the numbers of 25 examinations is 18. The average of the numbers of the first 12 examinations is 14 and for the last 12 examinations is 17. What is the number of the 13th exam?
1
68
2
78
3
80
4
58