8 Darryl can wax a floor in 10 minutes Asanji can wax the same floor in 15 minutes How long would it take them if they worked together A 6 19 minutes C 5 41 minutes B 7 14 minutes D 6 minutes 9 9 Working together Norachai and Scott can sweep a porch in 7 24 minutes Had he done it alone it would have taken Scott 14 minutes Find how long it would take Norachai to do it alone A 16 42 minutes C 14 58 minutes B 14 99 minutes D 11 45 minutes D