11. 10 days is the only possibility over a week out of the 3 options, so it is 1/3 chance of soending over a week
10. If you turn those percentages into decimals it goes: 0.125, 0.3, 0.45. It's easier to order them if you make them decimals, then make them percentages.
We have 3 boys and 2 girls. This gives a total count of 5. So we need to see how many lots of 5 will fit into 25. 5 lots of 5 gives 25. So we have 5 lots of the ratio