In a certain boys camp, \(20\%\) of the total boys are from school \(A\) and \(30\%\) of those study science. If there

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In a certain boys camp, \(20\%\) of the total boys are from school \(A\) and \(30\%\) of those study science. If there are \(49\) boys in the camp that are from school \(A\) but do not study science then what is the total number of boys in the camp?

A. 70
B. 245
C. 150
D. 35
E. 350

Answer: E

Source: GMAT Paper Tests