pyq/2014/csat/33
A group of 630 children is seated in rows for a group photo session. Each row contains three less children than the row in front of it. Which one of the following number of rows is not possible?
(A) 3
(B) 4
(C) 5
(D) 6
A group of 630 children is seated in rows for a group photo session. Each row contains three less children than the row in front of it. Which one of the following number of rows is not possible?
(A) 3
(B) 4
(C) 5
(D) 6