Is 10 gallons greater or less than 60 quarts?

First you must convert the gallons into quartz to know whether they are greater or less than eachother
so 1 gallon equals 4 quarts so you do 
10×4= 40 quarts
60 quarts
So 10 gallons is less than 60 quarts! Hope this helps plz let me know if you need me to explain better! Id be definitely willing to help