When full the gas tank of a car holds 15 gallons. now contains 12 gallons. what percent represents how full the tank is?

A tank can hold 15 gallons to be considered as full tank. Currently, the tank has 12 gallons on it. Find the percentage of its current gas.

Let x be the value of the percentage that we are looking:

=> 12 = x * 15

=> 12 = 15x

Now, let’s divide both sides with 15.

=> 12 / 15 = 15x / 15

=> 0.8 = x

Now, we have the decimal value of our percentage, let’s convert it to percentage

=> 0.8/100

=> 80%, thus x = 80%