Chapter 1.2, Problem 20PPS

To determine

To find: The number of cans donated by the boys each year.

Answer to Problem 20PPS

The numbers of cans donated by the boys in $2008$ is $20$ , in $2009$ is $35$ , and in $2010$ is $30$ .

Explanation of Solution

Given information:

The given graph is,

  

Calculation:

Consider the graph.

The length of the region shaded in orange represents the number of cans donated by girls and the length shaded in blue represents the number of can donated by boys.

For $2008$ , the bar stops at $45$ and the orange colored region stops at $25$ . So, the numbers of cans donated by girls is $25$ , and the boys is $45-25=20$ .

Similarly, for $2009$ the numbers of cans donated by the boys is $55-20=35$ .

And for $2010$ the numbers of cans donated by the boys is $75-45=30$ .

Therefore, the numbers of cans donated by the boys in $2008$ is $20$ , in $2009$ is $35$ , and in $2010$ is $30$ .