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How many four digit odd nos. greater than 6000 can be formed from the digits 5,6,7,8,9,0 if

(1) repitition of digits is allowed
(2)repitition of digits is not allowed


(2)   answer= (4)(5)(4)(3)+(5)(4)(3)=300
(1)  answer=(4)(6)(6)(6)+(6)(6)(6)=1080
0 0 0
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