The average of five results is 46 and that of the first four is 45. The fifth result is? Choose the correct choice.
A) 50  B) 88  C) 77  D) 66  E) 51
5 * 46 – 4 * 45   = 50   50nswer: 50
<result>A</result>
The average of five results is 46 and that of the first four is 45. The fifth result is?