Select the letter-cluster that can replace the question mark (?) in the following series.
SBQ, TDT, UFW, VHZ, ?
S + 1 = T, T + 1 = U, U + 1 = V, V + 1 = W B + 2 = D, D + 2 = F, F + 2 = H, H + 2 = J Q + 3 = T, T + 3 = W, W + 3 = Z, Z + 3 = C
In how many different ways can the letters of the word ‘FLOWER’ be arranged in such a way that the vowels occupy only the odd positions?
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How many three-letter words can be formed such that all letters are vowels, and no two letters are the same?
Geography books are never together.
Find the number of words that can be formed by using all letters of the word 'PAINT', if order of vowels remains same.
A committee of 5 members is to be formed out of 6 men and 4 women. In how many ways can a committee consisting of atleast 1 woman be formed?
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History books are always together and also Geography books are always together?
