A jar of 312 marbles is divided equally among a group of marble-players today. If 2 people joined the group in the future, each person would receive 1 marble less. How many people are there in the group today? Options:
A) 18 B) 20 C) 22 D) 24 E) 26
312 = 24*13 = 26*12   There are 24 people in the group today.   The answer is 24.
<result>D</result>
A jar of 312 marbles is divided equally among a group of marble-players today. If 2 people joined the group in the future, each person would receive 1 marble less. How many people are there in the group today?