Betty begins her jog at her house, running towards Alice’s house. Alice begins her jog at her house, running towards Betty’s house. When they reach each other’s houses, they turn around and run in the opposite direction. If the distance between their first and second meetings is 100m, and the ratio of their speeds is 4:3, how far apart are their houses, in meters?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.