Suppose that 1500 volcanoes on the earth surface are active. if 80% of this volcanoes are located at convergent tectonic plate boundaries how many active volcanoes are located at convergent boundaries?

This is actually a Maths question - although is it related to geography.

In order to calculate this, we simply need to find out how many is 80% of 1500, like this:



So the answer is: 120 volcanoes are located in this area!