There are ten chairs in a row. in how many ways can two people be seated so that they are not seated next to each other?

There are 368,947,264 ways to do so.

Step-by-step explanation:

Since we have given that

Number of chairs in a row = 10

Since two people can be seated so that they are not seated next to each other.

For number 8: One sit at either end of the row  

For number 7: One sit between last and first chair.  

so, the number of ways would be

Hence, there are 368,947,264 ways to do so.

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step-by-step explanation:

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb