\(10\%\) of GMAT test-takers take the exam more than once and have a high score of \(650\) or greater, and \(20\%\) of GMAT test takers who take the test only once have a score of \(650\) or greater. if \(40\%\) of GMAT test-takers take the exam more than once, What percent of GMAT test takers have a high score of less than \(650?\)
A. \(10.5\%\)
B. \(22\%\)
C. \(30\%\)
D. \(70\%\)
E. \(78\%\)
Answer: E
Source: Manhattan GMAT