state gov PSTCL/PSPCL Clerk Mock Test 2021 Quantitative Aptitude Algebra Linear Equation in 2 Variable
The graphs of the linear equations 8x - 40 = y and 4x + y - 20 = 0 intersect at the point P(a, b). What is the value of (30a + 10b)?
1
150
2
50
3
100
4
250