What is the formula and the correct answer

Question

Handyman Ty is at it again. He was just hired to paint a room that is 975m2 . The label on the 4-Litre can of paint says that it covers about 230m2 . How many cans of paint does he need to buy to finish the job?

Answer 1

975/230 = 195/46 = about 4.24 four Liter cans

if they don't come in smaller containers, he needs 5 cans