For every 2 orcs they are as strong as 3 individual orcs.
According to chapter 100 men can kill 100 orcs.
Write the equation for 3000 orcs, you have an hour.
@Nullify What I got out of the chapter is that Yamada was the only one drinking coke (seems like he's a minor?). She's over 20 so she can legally drink alcohol in Japan.
@CyBerK I know it's wikipedia but read the Sengoku section:
https://en.wikipedia.org/wiki/Tanegashima_(gun)
Well they're no rifles but they still had some firearms
@Kaarme It probably makes more sense in japanese, I guess he said "kimi" for you while she said the basic "arigatou" or something. So she really didn't use "you", while he did.