Grade 12th passAlgebra
how many numbers greater than 50000 can be formed by using the digits 2,5,5,6,7
1 Answer
Khushi
1st place can only be filled in 4 ways from
digits- 5,6,6,7
After filling the 1st place,
Remaining places =4
No. of ways remaining 4 places can be filled = 4!/2!= 4×3×2!/2!= 12
Total no. of arrangements =12×4=48
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