Anna Lisa bought two dozen apples for $15.60. At that same rate, how much would three dozen of these apples cost?
Three dozen cost 1.5 times as much as two dozen, so the cost is 3/2*$15.60=3*$7.80=$23.40.
Complete the following task based on the instruction and optional input provided.### Instruction:
Anna Lisa bought two dozen apples for $15.60. At that same rate, how much would three dozen of these apples cost?

### Output:
Three dozen cost 1.5 times as much as two dozen, so the cost is 3/2*$15.60=3*$7.80=$23.40.