Question
At a new year party, every member brought 1 or 2 guests. If the ratio of the number of members to the number of guests was 4 : 5, what fraction of the members who brought 1 guest?
2 m

Click button first when a symbol is required. X

At a new year party, every member brought 1 or 2 guests. If the ratio of the number of members to the number of guests was 4 : 5, what fraction of the members who brought 1 guest?