For exactly how many of the campers is it possible to determine exactly which sorts of items they purchase?

chrism August 3, 2022

Can someone explain the reasoning behind the answer being 3?

I have my answer as four with: K, J, M, and H

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Emil-Kunkin August 5, 2022

Hi ChrisM,

I dont think we know which items J purchases. We know he has an R, and that he must have either an S or a T, but I don't think we know which of the two he has. We know he can only have one of the two, as M has more than J, but I think that J could have RT or RS.

Abigail-Okereke August 22, 2022

I chose the answer choice that said two. How is three? I can only be certain which items H and K purchase. M could purchase all three items or just two, which still allows M to have more than J if J only purchases r. Is there something I'm missing?

Emil-Kunkin September 1, 2022

Hi Abigail,

We actually do know that M has to purchase all three. Since we know that J has R, and that J has one of the two that H does not purchase, we know that J must buy at least two items. Since we know that M bought more than J, M must have all three.

Yianni July 11, 2023

Could someone help set up this game for me, I am lost