Lynn needs motor oil for her machines. She has 4 lawnmowers that need 0.9 quarts of oil each, 2 motorcycles that each need 1.8 quarts, and 1 car that needs 5.5 quarts. Motor oil is sold in 1-quart bottles. Each machine needs a different type of oil. Lynn needs to figure out how much oil to buy.

Which statement is correct?

A.
Lynn must add all of the amounts of motor oil together so she can buy exactly 12.7 quarts of motor oil.

B.
It is okay to round each amount of motor oil that is needed to the nearest quart because the oil is sold in 1-quart amounts.

Question

Lynn needs motor oil for her machines. She has 4 lawnmowers that need 0.9 quarts of oil each, 2 motorcycles that each need 1.8 quarts, and 1 car that needs 5.5 quarts. Motor oil is sold in 1-quart bottles. Each machine needs a different type of oil. Lynn needs to figure out how much oil to buy. 

Which statement is correct?
 
 A.
Lynn must add all of the amounts of motor oil together so she can buy exactly 12.7 quarts of motor oil.
 
 B.
It is okay to round each amount of motor oil that is needed to the nearest quart because the oil is sold in 1-quart amounts.