In how many maximum different ways can 3 identical balls be placed in the 12 squares (each ball to be placed in the exact centre of the squares and only one ball is to be placed in one square) shown in the figure given above such that they do not lie alon

examrobotsa's picture
Q: 40 (IAS/2007)
In how many maximum different ways can 3 identical balls be placed in the 12 squares (each ball to be placed in the exact centre of the squares and only one ball is to be placed in one square) shown in the figure given above such that they do not lie along the same straight line?

question_subject: 

Logic/Reasoning

question_exam: 

IAS

stats: 

0,2,5,1,3,1,2

keywords: 

{'identical balls': [0, 0, 3, 0], 'many maximum different ways': [0, 0, 3, 0], 'squares': [0, 0, 1, 0], 'square': [0, 0, 0, 1], 'ball': [1, 3, 13, 12], 'same straight line': [0, 0, 1, 0]}