QUESTION 2B

[void summit]

QUESTION 2B

help

<@&791435371564892232>

[void summit]

<@&791435371564892232>

@pseudo thorn

@anyone

@neon robin pls

help

[pseudo thorn]

on it bro

[void summit]

ty

[pseudo thorn]

in this case, whether theyre a boy or girl doesnt matter

so u got 27 students in total

[void summit]

ok

[pseudo thorn]

for ur first student, how many options u got

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27

[pseudo thorn]

then for the second studnet?

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26

[pseudo thorn]

and then 25 for the last

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OHHH

[pseudo thorn]

butttt

[void summit]

?

[pseudo thorn]

u dont rlly care abt the order, so ABC is the same choice as CBA which is the same choice as ACB

so for each option turns out youve got 6 duplicates

[void summit]

26x25x27

[pseudo thorn]

so ay thr end u hv to divide by 6

[void summit]

Why

[neon robin]

27C3

[neon robin]

bc Josh, Jenny, Jack is the same as Jenny, Jack, Josh

[pseudo thorn]

like ABC, ACB, BAC, BCA, CBA, CAB all count as the same possibility

[tiny latch]

@void summit all good? Also try not to ping people@more than once, just ping maths mentor once and that’s enough

[void summit]

sorry!!!