Maths fail..

let x = average marks that I have to achieve in order to get total average mark of 62

[3x + 59 + 55 + 52]/6 = 62
3x + 59 + 55 + 52 = 372
3x = 206
x = 68.66666666666666666666667
  = 69



Gosh..
Buddha please be with me in this 2months.. T.T
Accountant in future who fails Simple Maths..