Match the LIST-I with LIST-II
| LIST-I (Letter Word) | LIST-II (Arrangement of the letters of the word in different ways) |
|---|---|
| A. PRESENT | I. 181440 |
| B. APTITUDE | II. 4989600 |
| C. REASONING | III. 2520 |
| D. MATHEMATICS | IV. 20160 |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → A - III, B - IV, C - I, D - II
PRESENT has 7 letters with E twice, so the arrangements are 7!/2! = 2520 (A - III). APTITUDE has 8 letters with T twice, giving 8!/2! = 20160 (B - IV).
REASONING has 9 letters with N twice, giving 9!/2! = 181440 (C - I). MATHEMATICS has 11 letters with M, A and T each twice, giving 11!/(2!2!2!) = 4989600 (D - II).