Math Problem : FF.5 Distribution of seeds of flower

In a certain class of 40 students, it decided to distribute same number of the seeds of flower to applicants.

When distributed to the applicants at first, there is no seed remained.

However, since number of applicants was increased by three later, when redistributed, 18 seeds remained and it was not able to distribute one more to applicants.

At this time, the teacher said, “Although number of seeds remained is not enough for three persons, it is enough for two persons.”

Find the number of applicants at first.









Answer
21 persons