Katya has 24 empty oil containers that can each hold 14.9 litres. She wants to buy an amount of oil so that all of the oil will fit into her containers. Work out the maximum amount of oil, in litres, that she could buy if she is only allowed to buy a whole number of litres.

Step 1 ：Let the number of containers be \(n = 24\) and the capacity of each container be \(c = 14.9\) litres.

Step 2 ：Calculate the total capacity of all containers: \(n \times c = 24 \times 14.9 = 357.6\) litres.

Step 3 ：Since Katya can only buy a whole number of litres, round down the total capacity to the nearest whole number: \(\lfloor 357.6 \rfloor = 357\) litres.

Step 4 ：\(\boxed{357}\) litres is the maximum amount of oil Katya can buy to fit into her containers.