Question
The ratio of Troy’s pretzels to Austin’s pretzels was 7:4. After Troy ate 25 pretzels, the ratio became 1:2. How many fewer pretzels did Troy have than Austin then?
Answers
R_scott
4 T = 7 A
2 (T - 25) = A ... 2 T = A + 50
substituting ... 2 A + 100 = 7 A
solve for A , then substitute back to find T , and T - 25
2 (T - 25) = A ... 2 T = A + 50
substituting ... 2 A + 100 = 7 A
solve for A , then substitute back to find T , and T - 25