Question

4 bananas are to be selected from a group of 7. In how many ways can this be done?
a 35
b 840
c 1
d 5,040

Answer 1

there are 7 ways to fill slot A
there are 6 ways to fill slot B
there are 5 ways to fill slot C
there are 4 ways to fill slot D

Answer 2

multiply that out to get your answer

Answer 3

so I multiply 7*6*5*4?

Answer 4

yep

Answer 5

oh and because order doesn't matter, you have to divide by 4! = 24

Answer 6

so the answer is A?

Answer 7

yep

Answer 8

thank you :)

Answer 9

you're welcome