All possible numbers are formed using the digits $1,1,2,2,2,2,3,4,4$ taken all at a time. The number of such numbers in which the odd digits occupy even places is (1) 175 (2) 162 (3) 180 (4) 160
All possible numbers are formed using the digits $1,1,2,2,2,2,3,4,4$ taken all at a time. The number of such numbers in which the odd digits occupy even places is\\
(1) 175\\
(2) 162\\
(3) 180\\
(4) 160