engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Average
Mean of the data 2, x, 7, 3, y, 9, 6 is 6 where x and y are constants. If x is replaced by 3x + 1 and y is replaced by y + 3, then the mean increases by 2. Find the value of x.
1
8
2
5
3
10
4
7