4 couples (8 people) are getting on a double-decker bus that has 4 seats on each floor. How many different ways can they sit on the bus so that each person's partner is on the opposite floor?

There are 9216 different ways.

Step-by-step explanation:

Since we have given that

Number of couples = 4

Number of people in couples = 8

Number of seats on each floor = 4

Number of ways to select a person from each to send him (or her) to the upper deck would be

Number of ways to select a person to send them to the bottom floor would be

Number of ways to select a person to send them to the upper floor would be :

So, the total number of different ways would be :

Hence, there are 9216 different ways.

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

what do u need to know

step-by-step explanation: