2018
Mathematics
JAMB
In how many ways can the letters LEADER be arranged?
A.
72
B.
144
C.
360
D.
720
Correct Answer: 360
Explanation
The word LEADER has 1L 2E 1A 1D and 1R making total of 6! 6/1!2!1!1!1! = 6!/2! = (6×5×4×3×2×1)/(2×1) = 360
The word LEADER has 1L 2E 1A 1D and 1R making total of 6! 6/1!2!1!1!1! = 6!/2! = (6×5×4×3×2×1)/(2×1) = 360THIS WEEK's
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