5/3+2= 1 1/3 hours. If Party A and Party B leave at the same time, Party B will arrive 1 1/3 hours earlier than Party A. ..
If B and A drive at the same time, you can drive one more lane:11/3× (16+44) = 220km.
Therefore, the time for Party A to complete the trip is: 220÷44=5 hours.
5×16 = 80km
80 kilometers away.
2. 2/9 of the people who participated in the music group is equal to 65438+ 0/5 of the people who participated in the art group.
Then the proportion of people participating in the music group and the art group is: 1/5:2/9=9: 10.
(50+7)×9/( 10+9)=27 people.
A: There are 27 people in the music group.
3、2/5÷30÷20= 1/ 1500
20÷2/5=50 days and 50-5=45 days.
1/ 1500×30×5= 1/ 10
(1-2/5) ÷11500× (45-20) = 36 people.
36-30=6 people
A: There will be six more people.