Question

the 5th graders at Bronx 2 Middle School used a identical airplanes with 90 seats on a chair plate for a trip to the Bahamas in order to maintain Social Justice League the bus take over one-third of the seats on each episode on 1/3 of the students and adults chaperones used the following steps to board the airplane:first they filled every available seat on 1/4 of the airplanes.what do you want next they sell 2/3 of the available seats on 1/3 of the remaining airplanes.last they filled in 25 seats on each photos of the remaining airplanes.if 1/10 of all the passengers on the airplane were adults how many adults were on the trip to the Bahamas ?

Answer 1

N= number of airplanes

1/4N of airplanes were filled

3/4N are remaining airplanes

2/3x1/3N= (2/9)•N are remaining airplanes chairs filled

1/10 of passengers were adults

There are 90 chairs for plane

1/4•90= 90/4= 22.5 passengers

2/3•1/3•90= 180/9= 20 passengers

last were 25 passengers

Then

Total passengers= 22+20+25= 67

10% of 67 = 6 passenger

Then answer is 6 adults were for an airplane