18 choose 7
=C(18,7)
=18!/(7!(18-7)!)
=31824
OR
18 choices for first passenger,
17 choices for second passenger,
....
12 choices for 7th passenger,
so total = 18*17*16...12
but there are 7! ways to order the 7 passengers, so
number of groups
=18*17*16...12/7!
=31824 as well
I'm pretty sure the answer is C
D- 4 is your correct answer :)
Hope this helps
Answer:
Step-by-step explanation:
1kg=1000g
2kg=2000g
275/2000=11/80g
Answer:
ok so id u go to this app {{mega .ogastry i put it right there
but {0-23
Step-by-step explanation: