You bowl 3 games and get an average score of 120. How many additional consecutive games with scores of 145 would you need to bring your average up to 130?

Question

anonymous · Answer

the average score is what you get while dividing the total scores in all the games divided by the total number of games played. take n as the additional number of games played and form the equation for the average

anonymous · Answer

[(3)(120) + x(145)] / (x + 3) = 130   Solve for "x".  "x" will be the number of additional games and "x + 3" is the total games.  (3)(120) is 360 and is not necessarily indicative of having bowled 3 games at 120 each but morese shows that 360 is the total score before bowling more games.