The average of five results is 46 and that of the first four is 45. The fifth result is?

One Answer on this Question

1. x- sum of first 4 values
   y – 5th value

   x/4 = 45
   x=45*4=180

   (x+y)/5 = 46
   (180+y)/5=46
   180+y=230
   y=50

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