In 50 numbers 10 are threes, 15 are fours, 18 are fives and the remaining are sixes. If a, b and c respectively
represent the mean, mode and median of the data, what is the value of a + 2b - c?
0 5.56
0 9.94
hi
0 10.94
0 12.5
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9.94 will be the answer .
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