164 pencils are distributed to children with the same number. What can’t be the range including the number of children?  Pick one.
A) 1~10 B) 10~20 C) 50~60 D) 20~30 E) 70~80
In 164=1*164=2*82=4*41=6*24, you can come up with 4 cases. Amongst these cases, what is not included is C. 50~60. Therefore, the answer is 50~60.
<result>C</result>
164 pencils are distributed to children with the same number. What can’t be the range including the number of children?