Question

A teacher gave a box of marbles to her class and asked the children to divide it into groups of 3,15 or 25 every time the children grouped the marbles, there were no remaining marbles. what was the least number of marbles in the box?

Answer 1

To answer this question, you will need to find the LCM of 3, 15 and 25, and this is 75

Because 75 = 3*25 or 25*3 as well as 15*5.

Thus, the least number of marbles in the box is 75.