Rank of a word in dictionary:- If ‘ABC’ is arranged in dictionary order. find the rank of the word ‘CAB’ ABC → 1ˢᵗ ACB →2ⁿᵈ BAC → 3ʳᵈ BCA → 4ᵗʰ CAB → 5ᵗʰ → Answer CBA → 6ᵗʰ (Q). Find the rank of the word MOTHER when its letters are arranged in...
Word/Number Formation Formation of word:- The number of arrangement of n things taken all at a time when p of them are identical of one type, q of them are identical of another type, r of them are identical of another type &...
⦿ When clockwise ↻ & anticlockwise ↺ arrangement are same: Formation of Garland we are to arrange n beads in a circle to form a garland.Here if we look at garland clockwise ↻ or anticlockwise ↺ both look will be same. i .e. ↻ & ↺ arrangement are not...
Circular arrangement The main difference between circular & linear arrangement is the point of reference. ⇒ When clockwise ↻ & anticlockwise ↺ arrangement are different. Let there are 10 students & 10 chairs in a circle. For the...
Formation of Geometrical Figures ⦿ Number of straight lines from given n points:Given, there are ‘n’ points in a plain. no three of them are collinear, then number of straight lines is same as number...
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