Grade 12Magical Mathematics[Interesting Approach]
22th question in the attachment................................
22th question in the attachment................................
1 Answer
Arun
Numbers using 1,2,3,4,5 No. of numbers =5!=120 Numbers using 0,1,2,4,5 No. of numbers =5!-4!=120-24=96 There are 4! numbers beginning with 0 ∴ ∴ Total number of numbers =120+96=216
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