SOLUTION: Ben bowled 153 and 190 in his first two games. What must he bowl in his third game to have an average of at least 190?

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Question 1163454: Ben bowled 153 and 190 in his first two games. What must he bowl in his third game to have an average of at least 190?
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.

    %28153+%2B+190+%2B+x%29%2F3 >= 190


    153 + 190 + x >= 3*190


    x >= 2*190 - 153


    x >= 227.     ANSWER


Or you can solve it mentally,  by adding the difference   (190-153) = 37   to  190.



Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Another mental solution method....:

His second game is exactly the average he wants; his first game was (190-153) = 37 points short of that average.

His third game must then be (at least) 37 points above that average.

ANSWER: 190+37 = 227 (or higher)