In 1992 a total of 550 earthquakes occurred worldwide, some but not all of which occurred in Asia. If 150 of these earthquakes occurred in Asia, which of the following represents the ratio of the number of earthquakes that occurred in Asia to the number that did NOT occur in Asia? Choose the correct choice
A) 2/8  B) 1/8  C) 3/8  D) 5/8  E) 7/8
We're given a couple of facts to work with:   1) There were a total of 550 earthquakes   2) Of those earthquakes, 150 of them occurred in Asia   We're asked for the ratio of the number of earthquakes that occurred IN ASIA to the number of earthquakes that DID NOT occur in Asia.   Thus, there were 400 earthquakes that DID NOT occur in Asia....   The answer to the question is 150/400 = 3/8   Answer : 3/8
<result>C</result>
In 1992 a total of 550 earthquakes occurred worldwide, some but not all of which occurred in Asia. If 150 of these earthquakes occurred in Asia, which of the following represents the ratio of the number of earthquakes that occurred in Asia to the number that did NOT occur in Asia?