arithmetic - in a primary school 10 of students are below 11 years of age the number of students above 11 years of age is 34 of the number of students of 11 years of age which is 36 what is the total number of students in the school - skillgun

Let the number of students be x.
Then, Number of students above 11 years of age = (100 - 10)% of x = 90% of x.
90% of x = 36 + 3/4 of 36
90x/100 = 63
x = 70.