Q: 75 (IAS/2009)

There are 240 balls and n number of boxes B1, B2, B3, ... , Bn. The balls are to be placed in the boxes such that should contain 4 balls more than B2, B2 should contain: 4 balls more than B3, and so on.
Which one of the following cannot be the possible value of n ?
question_subject: 
Logic/Reasoning
question_year: 
2009
question_exam: 
IAS
question_sub_subject: 
Reasoning
question_topic: 
Analytical
stats: 
0,56,144,56,40,48,56