Question

Number of 4 letter words using the letters of the word
'OBJECT' assuming that no letter is repeated are​

Answer 1

Answer:

ans is 360

Step-by-step explanation:

The letter O can be placed in 6 different ways

The letter B can be placed in 5 different ways

The letter J can be placed in 4 different ways

The letter E can be placed in 3 different ways

Therefore, no. of permutations = 6*5*4*3

= 360

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