Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Quantitative Aptitude Algebra Linear Equation in 2 or more Variables
If x(x + y - 2z) = 10, y(x + y - 2z) = 20 and 2z(x + y - 2z) = 14, then find the value of (x + y - 2z).
1
4
2
8
3
30
4
More than one of the above
5
None of the above