Asked by Jac
Amy, Siti and Tina have a total of 730 story books. Tina has 50 more books than Amy. Amy has 70 books more than Siti. How many story books does Tina have?
Answers
Answered by
Damon
S + (70+S) + (70 + S + 50) = 730
3 S + 190 = 730
3 S = 540
S = 180
(70 + S + 50) = 120+180 = 300
3 S + 190 = 730
3 S = 540
S = 180
(70 + S + 50) = 120+180 = 300
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