Question 523023
Let 
Maximum Marks = x
Marks = 215 
Total marks to get 60% = 215+10 = 225


60% of x = 225
60/100 * x = 225
3/5 * x  = 2250
3*x=225*5
3*x=1125
3*x/3=1125/3
x=375

Maximum Marks = 375