Question

Camp Topanemus has a total of 60 campers and 20 of the campers do not know how to swim. If the rest of the campers have mastered swimming, which statement is true?
Responses
A For every 3 campers that knows how to swim, there is 1 camper that does not know how to swim.For every 3 campers that knows how to swim, there is 1 camper that does not know how to swim.
B For every 2 campers that knows how to swim, there is 1 camper that does not know how to swim. For every 2 campers that knows how to swim, there is 1 camper that does not know how to swim.
C For each camper that knows how to swim, there are 2 that do not know how to swim.For each camper that knows how to swim, there are 2 that do not know how to swim.
D For each camper that knows how to swim, there are 3 that do not know how to swim.For each camper that knows how to swim, there are 3 that do not know how to swim.

Answer 1

There are 60 − 20 = 40 campers who know how to swim. The ratio who know to who don't is 40:20 = 2:1, so for every 2 who know there is 1 who doesn't. Answer: B.