A tour group charges a flat price for a tour of up to 20 people. The cost per person varies inversely with the number of people. If five people pay 135 each, what must 15 people pay per person.
5 people - pay 135 each 15 people - pay x each ---------------------------------- 5 : 15 = x : 135 15 x = 5 * 135 15 x = 675 x = 675 : 15 x = 45 Answer: B ) 45.00
