Level 3 PSLE
At a swimathon, each swimmer completed either a 2-km route, a 4-km route or an 5-km route. 15
of the swimmers completed the 2-km route, 720
of the participants completed the 4-km route and the rest completed the 5-km route. For every 1 km a participant swam, $8 was donated to charity. A total of $12960 was donated to charity.
- What is the ratio of the number of swimmers who completed the 2-km
route to the number who completed the 4-km route to the number who
completed the 5-km route?
- What is the total number of swimmers at the swimathon?