Math
posted by Sandy .
Mr.Fox's fourth grade class of 20 students had an average of 72% on their last test. However, Rose's mark of 76% had been incorrectly recorded as 56 %. What was the correct class average for the test?
A) 82% B) 80% C)73% D) 62%

20*.72 = 14.4
(144+(.76.56))/20 = .73
so (C)
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