Daloris swan 3 length of a swimming pool in a total of 16.32 seconds. the third length took her 5.89 seconds. how long did it take daloris to swimming the first 2 length of the pool?

Ineed on quadratic equations to solve problems

Well to find if anything is dividable by 3 add up all the 2+6+3+4+1 which equals sixteen which is not divisbale by 3. the three trick works with all numbers 12..1+2=3 so it is dividable