Question

The Australian Rowing Federation intends sending a women’s sculling pair to the next Olympic games. At the final selection stage there are four scullers left in contention. In how many different ways can the pair be chosen? We will assume that each person can occupy either seat in the racing shell.

Answer 1

need help asap

Answer 2

can someone please help

Answer 3

there are 4 scullers left.
you want to know how many sets of 2 you can make where order is not important.
the equation is 4C2 which is equal to 4! / (2!*2!) which is equal to 24/4 which is equal to 6. if you assign letters to each sculler, then you get the 4 scullers can be a, b, c, or d.
you then pair them up where order is not important and you get:
ab
ac
ad
bc
bd
cd
that makes a total of 6 possible where order is not important.