JEE Mains · Maths · STD 11 - 6. permutation and combination
All the letters of the word "\(GTWENTY\)" are written in all possible ways with or without meaning and these words are written as in a dictionary. The serial number of the word "\(GTWENTY\)" IS
- A \(526\)
- B \(553\)
- C \(456\)
- D \(435\)
Answer & Solution
Correct Answer
(B) \(553\)
Step-by-step Solution
Detailed explanation
Words starting with \(\mathrm{E}=360\) Words starting with \(\mathrm{GE}=60\) Words starting with \(\mathrm{GN}=60\) Words starting with \(GTE\) \(=24\) Words starting with \(GTN\) \(=24\) Words starting with \(GTT\) \(=24\) GTWENTY \(=1\) Total \(=553\)
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