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Question
Number of selections of at least one letter from the letters of MATHEMATICS, is ______.
Options
863
864
865
866
MCQ
Fill in the Blanks
Solution
Number of selections of at least one letter from the letters of MATHEMATICS, is 863.
Explanation:
MM AA TT H E I C S
Number of selections of at least one letter
= 3 × 3 × 3 × 25 – 1
= 864 – 1
= 863
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