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 5seats in business class.How many seats are there in each class?

Answer 1

260 seats in economy class, 100 in business class
The ratio of economy class to business class is 13:5
13+5 = 18 (total seats in the ratio)
360/18 = 20 (to see how many multiples of the ratio there are)
20*13 economy = 260 economy
20*5 business = 100 business