Question

4. In how many ways can all of the letters of the word NUMBERS be arranged if it

start with a consonant and end with a vowel? /2

Answer 1

2400 words

Explanation:

First choose the first letter. You have 5 choices of consonant for this.

Next choose the last letter. You have 4 remaining consonants for this.

Now you have 5 remaining letters which can be placed in any order.

So the answer will be:

5⋅4⋅5!

20⋅120

2400