Question

how many permutation can be made from the letters in the word Monday if:

a.) 4 letters are used at a time.
b.) all the letters are used
c.) all the letters re used but the 1st is a vowel

Answer 1

Your Answer A is in image No.1

Answer B in Image No.2

And last and C is in Image No.

$\huge \underbrace \blue{3}$

all images are line wise.