Aplane has 360360360 total seats, which are divided into economy class and business class. for every 131313 seats in economy class, there are 555 seats in business class.

Here is the full question A plane has 360 total seats, which are divided into economy class and business class. For every 13 seats in economy class, there are 5 seats in business class.
How many seats are there in each class?

Total seats in economy class : 13
Total seats in business class     5
                                                +
                                                  18

260/18 = 14 8/18

Total seats: 
(14 x 13 Economy) + (14 x 5 business) + (8 Business)

= 182 Economy + 70 Business + 8 Economy

= 190 Economy + 70 Business

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