Teachers divided students into groups of $3$ . Each group of $3$ wrote a report that had $9$ pictures in it. The students used $585$ pictures altogether. How many students were there in all?

Full solution

Q. Teachers divided students into groups of

3

. Each group of

3

wrote a report that had

9

pictures in it. The students used

585

pictures altogether. How many students were there in all?

Calculate Number of Groups: We need to find out how many groups of $3$ students there were if each group used $9$ pictures and altogether $585$ pictures were used. To do this, we first find out how many groups there were by dividing the total number of pictures by the number of pictures each group used. $\newline$ Calculation: $585 \div 9$
Find Total Students: Now we perform the division to find out the number of groups. $585 \div 9 = 65$ This means there were $65$ groups of students.
Perform Division: Since each group consists of $3$ students, we multiply the number of groups by $3$ to find the total number of students. $\newline$ Calculation: $65 \times 3$
Perform Multiplication: Now we perform the multiplication to find the total number of students. $\newline$ $65 \times 3 = 195$ $\newline$ This means there were $195$ students in total.