The gas tank of a car holds 20 gallons of gas. A gallon of gas costs $1.22. When the tank was filled it cost $20. About what percent of the tank was filled?
My goodness, this is an old problem! Gas at $1.22 a gallon???
20/1.22 = 16.39 gallons
16/20 = 0.8 = 80%
Thanks, I was confused on this problem!
And yes, that's what I thought when I read that gas was only $1.22!
To find out what percentage of the gas tank was filled, we need to determine the number of gallons that were filled and divide it by the total capacity of the tank. Here's how you can calculate it:
1. Calculate the cost per gallon of gas: Divide the total cost ($20) by the number of gallons (20) to find the cost per gallon. In this case, it would be:
$20 / 20 gallons = $1 per gallon
2. Calculate the number of gallons filled: Divide the given cost of filling the tank ($20) by the cost per gallon ($1) to find the number of gallons filled. In this case, it would be:
$20 / $1 = 20 gallons
3. Calculate the percentage of the tank filled: Divide the number of gallons filled (20) by the total capacity of the gas tank (20) and multiply the result by 100 to get the percentage. In this case, it would be:
(20 gallons / 20 gallons) * 100 = 100%
Therefore, approximately 100% of the gas tank was filled.