how is this 96, ?
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sharp cloud
summer trenchBOT
how is this 96, ?
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thick brook
how is this 96, ?
count permutations and exclusions
we know that 8 cannot be in the first place
so we start with 5 in the ten-thousands place
oblique egret
how is this 96, ?
...because 4 * 4 = 16, 16 * 3 = 48, and 2 * 48 = 96.
thick brook
...because `4 * 4 = 16`, `16 * 3 = 48`, and `2 * 48 = 96`.
i think they’re asking for the permutations, good sir
oblique egret
i think they’re asking for the *permutations*, good sir
And I think an important skill to learn in math is asking the question you actually want answered.
thick brook
how is this 96, ?
to be precise, we can have 4 digits in the ten thousands place, with 4!=24 combinations of each ten thousands place (i.e. 1____ can have 24 arrangements, 2____ can have 24 arrangements, etc.) which totals to 96 arrangements
hearty scaffold
i think they’re asking for the *permutations*, good sir
that is what they just calculated
thick brook
that *is* what they just calculated
clearly if they don’t know the answer the photo provided is not their own work.
hearty scaffold
i meant techie
thick brook
but you mentioned me 😦
upbeat onyxBOT
@sharp cloud
warped roost
+close