Question

The total height of a class is 1300cm . If the average height of the class is 65cm , find the number of students

Answer 1

1300/x=65

so x= 20

there are 20 students in d class

Answer 2

Let no. of students=x

Average height= Total height÷ no. of students

$65 = \frac{1300}{x}$

$x = \frac{1300}{65}$

$x = 20$