Question

Verne has 5 math books to line up on a shelf. Jenny has 4 English books to line up on a shelf. In how many more orders can Verne line up his books than Jenny

Answer 1

Answer: 96

Explanation:

Given

Verne has 5 math books to line up on a shelf

Jenny has 4 english books to line up on a shelf

No of ways Verne can arrange the books are
`5!`

No of ways Jenny can arrange the books are
`4!`

Difference between them

`=5!-4!\\=120-24\\=96`

Thus, Verne can line up 96 more orders than Jenny