Question

Can someone explain to me how to do this problem? A golfer played 8 rounds on a tournament course with the following scores ( par is the expected score for a round; negative numbers represent the number of strokes under par for the round, and positive numbers represent the number of strokes over par for the round); +5, -2, +3, -1, -3, +6, +2, -7. The golfer played 2 more rounds, ending with an even par total for the 10 rounds. Her score for the last round was 7 more than her score on the next-to-last round. What scores did the golfer have on the last two rounds? Thanks.

Answer 1

Total for the first 8 rounds
= +5 -2 +3 -1 +6 +2 -7
= +3
Let x=score for last round, the
Total for 10 rounds
= +3 + (x-7) + x
= 0 (par)
2x -7 + 3=0
x=2 (last round)
x=2-7= -5 (last but one round)

Answer 2

Answer 0