Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Linear Equation in 2 Variable
If the system of linear equations 2x + 3y = 7 and 2ax + (a + b) y = 8 has infinitely many solutions then.
1
a = 2b
2
b = 2a
3
a + 2b = 0
4
More than one of the above
5
None of the above