there were 93 students going to a nature camp. after equal groups of fewer than 10 students were formed for hiking, 2 students were left over.how many equal groups were formed?

Answer 1

If 93 less 2 students formed equal groups, we had 91 in the groups.
91=7*13
Equal groups can be formed with either 7 or 13 persons.
Can you take it from here?