In a group of people, if 30 people were made to stand in each column, 16 columns could be formed. If 40 people were made to stand in a column, how many columns could be formed?  Choose the correct choice:	A) 12	B) 14	C) 16	D) 18	E) 20
16*30 = 40*n   n = 12   The answer is 12.
<result>A</result>
In a group of people, if 30 people were made to stand in each column, 16 columns could be formed. If 40 people were made to stand in a column, how many columns could be formed?