1.

How many different 4 – letter words can be formed with the letter of the word ‘MUNCH’ when U & N are always to be included ? 1. 722. 623. 124. 425. 32

Answer» Correct Answer - Option 1 : 72

Given

5 letter word MUNCH is given

Calculation

Since U and N are always included so first we select 2 letters from remaining 3 letters(M, C and H), which can be done in 3 C2. = 3 ways

Now these 4 letters can be arrange in 4! = 24 ways

So, the required number is 72 ways (3 × 24)

 



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