Bob makes some fruit punch that contains apple juice and mango juice in a 1:5 ratio. If he uses 15 pints of the mango juice how many pints of apple juice will he need

Which labels do x and y represent? x: scattered bundles y: multiples of four or five x: scattered bundles y: multiples of three x: bundles in a ring y: multiples of four or five x: bundles in a ring y: multiples of three