Question

How many words can be formed by taking 4 letters at a time out of the letters of the word

‘EXAMINATION’.​

Answer 1

Answer:

We have 8 distinct letters( M,A,T,H,E,I,C,S). We choose any 4 from this and then arrange it in 8P4 ways=1680 ways

Step-by-step explanation:

Answer 2

Answer:

7

Step-by-step explanation: