CUET Preparation Today
How many 3-letter words can be formed from the letters of the word 'OBJECTS' if repetition is not allowed? |
35 120 210 840 |
210 |
The word OBJECTS has 7 different letters.Hence, the number of 3-letter words formed by using these letters but without repetition = 7P3=7×6×5=210
The correct answer is Option (3) → 210 |
