Norm Jones
Hello, I cannot tell what gauge strings came on your guitar without seeing them. You could of course measure them. Since you recently bought the guitar, why not go back to the store and ask them what strings they put on it? Many stores put fresh strings on a guitar when they sell it. No way to know what strings the store put on your guitar. Go ask the store. They can help you get the correct size strings to replace your broken string. Later,