Marcus has three times as many cheese crackers as Mona.  Nicholas has 6 more crackers than Mona.  If Marcus has 27 crackers, how many crackers does Nicholas have?
Mona has 27 / 3 = <<27/3=9>>9 cheese crackers.
Nicholas has 9 + 6 = <<9+6=15>>15 cheese crackers.
#### 15