In a group of people, if 30 people were made to stand in each column, 16 columns could be formed. If 12 people were made to stand in a column, how many columns could be formed?  Choose the correct choice from the following choices: A) 20 B) 30 C) 40 D) 50 E) 60
16*30 = 12*n   n = 40   The answer is 40.
<result>C</result>
In a group of people, if 30 people were made to stand in each column, 16 columns could be formed. If 12 people were made to stand in a column, how many columns could be formed?