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It is telling that how many words can be made from the word EXAMINATION
so 136 words can be Made from EXAMINATION
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Given Word is examination.
It consists of AA, NN, II, E, X, T, M, O
1) The number of ways of selecting all 4 different letters = 8c4.
2) The number of ways of selecting 2 similar and 2 non-similar letters = 3c1 * 7c2.
3) The number of ways of selecting 2 similar combination letters = 3c2.
8c4 + 3c1 * 7c2 + 3c2
= 70 + 63 + 3
= 136.
Hope this helps!
It consists of AA, NN, II, E, X, T, M, O
1) The number of ways of selecting all 4 different letters = 8c4.
2) The number of ways of selecting 2 similar and 2 non-similar letters = 3c1 * 7c2.
3) The number of ways of selecting 2 similar combination letters = 3c2.
8c4 + 3c1 * 7c2 + 3c2
= 70 + 63 + 3
= 136.
Hope this helps!
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