Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Elementary Statistics
The mean, median and mode of the observations 25, 25, 13, 19, 15, 15, 24, 10, 25 and 9 are a, b and c respectively. Find the value of the expression (a + b - c)2.
1
100
2
121
3
144
4
More than one of the above
5
None of the above