Problema Solution
Erin's three test scores were consecutive odd integers. If her next test score is 18 points more than the highest score of the three tests,her total number of points will be 328. Find Erin's test scores
Answer provided by our tutors
the three consecutive odd integers can be written as
2x - 1, 2x + 1, 2x + 3, where x is integer
next test score is 18 points more than the highest score of the three tests
18 + 2x + 3 = 2x + 21
her total number of points will be 328
2x - 1 + 2x + 1 + 2x + 3 + 2x + 21 = 328
by solving we find
x = 38
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2*38 - 1 = 75
2*38 + 1 = 77
2*38 + 3 = 79
2*38 + 21 = 97
Erin's test scores are 75, 77, 79 and 97.