There are 36 students in a class There are 3 times as many boys as girls How many boys are there?

Let the number of girls be ( x ). Then, the number of boys is ( 3x ). According to the problem, the total number of students is 36, so we can set up the equation: ( x + 3x = 36 ). Solving this gives ( 4x = 36 ), which means ( x = 9 ) (girls), and therefore, there are ( 3 \times 9 = 27 ) boys in the class.