Jeeva1989 wrote:
I chose (B) as the answer and I am unable to understand how (C) is the right answer. Can someone please help.
Quote:
Human exposure to even low levels of nuclear radiation dramatically increases the likelihood of contracting some form of cancer. According to a research study involving a town near a former nuclear testing site, no person who resided in the tow during the testing - which occurred more than sixty years ago - and who was under the age of 10 during the testing lived beyond 50 years of age. However, some of the town's former residents who are now over 50 years old are cancer survivors but resided in the town during the nuclear testing.
If the information provided is true, which of the following must on the basis of it also be true about the town that is the subject of the research study?
Quote:
(B) The cancers contracted by the town's cancer survivors were to caused by exposure to nuclear radiation.
why this is wrong: No where it is given that these people got cancer because of exposure to nuclear radiation. Yes they were present during the nuclear testing. In the first sentence, it says exposure increase LIKELIHOOD, it does not say that it cancer will happen for sure.
Quote:
(C) Some of the town's former residents living today were over 10 years of age during the nuclear testing
There were only two group of residents during the testing. less than 10 and more than 10 years old.
The passage says less then 10 years old did not survive. About the second group, the passage clearly says "However, some of the town's former residents who are now over 50 years old are cancer survivors but resided in the town during the nuclear testing." This must be the second group of residents who were more than 10 years old at that time.
I hope it helps.