1quart of paint can cover 50 square feet, how much should I buy to cover 10 feet long and 8 feet tall.

quantity=rate*area

quantity=1qt/50ft^2 * 10*8

quantity=80/50 quarts

so two quarts will do it, you unless you can by smaller cans.

To calculate how much paint you need, you'll first need to calculate the total square footage of the surface you want to cover.

In this case, you want to cover an area that is 10 feet long and 8 feet tall. To find the total square footage, multiply the length by the height:

10 feet * 8 feet = 80 square feet

Now that you know the total square footage, you can determine how much paint you need. Given that 1 quart of paint can cover 50 square feet, you can divide the total square footage by the coverage per quart:

80 square feet ÷ 50 square feet/quart = 1.6 quarts

Therefore, you would need to buy approximately 1.6 quarts of paint to cover an area that is 10 feet long and 8 feet tall. Since you can't buy a fraction of a quart, you would usually round up to the nearest whole number, which means you would need to buy 2 quarts of paint.