defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Quantitative Aptitude Algebra Linear Equation in 2 Variable
If 33x - y = 81 and 3x + y = 729, find the product of x and y ,where x and y are two real numbers.
1
6
2
8
3
8.75
4
5.25