Question: Sawyer is a teacher. Sawyer instructs every student in the class to sketch one roman number as per their roll numbers. Student with roll number 1 will sketch the first roman letter, roll number 2 will sketch the second roman letter and so on. Finally, Sawyer collects all sketches and found that there are 6 sketches of each of roman letters. How many students were there in the class?
Answer: 42