It could be a math exercise in a vacation notebook: knowing that the cost of kerosene in the price of a plane ticket varies from 20% for classic companies to 35% for low cost companies, at what increase could you face if the price of kerosene increases by 10%? By 20%? By 30%? Unfortunately, in … Read more
https://awardworld.net/booker-prize/the-price-of-the-plane-ticket-can-not-always-increase/
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