Question

In how many orders can seven different pictures be hung in a row so that one specified picture is at the center?
36
512
360
720​

Answer 1

Answer:

15

let's check the answer

Answer 2

Given: Seven different pictures

To Find: Number of orders can seven different pictures be hung in a row so that one specified picture is at the center?

Solution: There are seven places and seven different pictures. As one specified picture shoul be at centre.

So, one place is fixed. Now, there are six places and six pictures.

So six pictures can be arranged at six places in 6P6 ways

So, 6P6 = 6!

= 6 × 5 × 4 × 3 × 2 × 1

= 720

So, the answer is 720

Option (4) is correct.