How many strings of length 6 can be formed using letters of the word FLOWER if
(i) either starts with For ends with R?
(ii) neither starts with F nor ends with R?
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Step-by-step explanation:
a) the 2 permutations ( starting with F and the one ending with R must be added) hence 1×5×4×3×2×1=120 + 5×4×3×2×1×1=120 , 120 +120= 240...i guess...
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