A caterer is making 16 ham sandwiches and 10 turkey sandwiches. Half of the ham sandwiches are on wheat bread. Two of the remaining ham sandwiches are on white and the rest are on rye. Four of the turkey sandwiches are on white. The rest are equally divided onto wheat and rye breads. Which two-way table represents this situation?
@skullpatrol
well first we know that there are 10 turkey sandwiches in total. meaning that the turkey on wheat, white and rye must all add up to 10.
correct
table A says that there are 5 turkeys on wheat 4 on white and 5 on rye
adding those up together you get 14.
We were told 10 were made and 14 doesn't equal 10, so A is incorrect.
Table B has the same problem. The total turkey sandwiches comes up to 14 again.
It has to be c or d because they have 3 +4 + 3
which becomes 7 +3
which becomes 10
So now we've met one condition
we know that there are 16 ham sandwiches and that half of them are wheat.
half of 16 is 16/2 or 8
the only tables that have 8 wheat ham sandwiches are b and d, but we saw before that it can't be b because it has an incorrect number of turkey sandwiches.
We can double check to make sure this is correct. it also said that 2 of the remaining hams where on white and the rest were on rye
so from our initial 16 hams 8 of them were on wheat since that's half meaning there are 8 remaining because 16 - 8 is 8
2 of them were on white and the rest were rye 8 - 2 = 6
can you just please tell me the answer already my session is about to end
but i do appreciate your explanation
i told you a and b don't work, look at the last two. look at the ham column which one has 8 2 and 6?
D
there you go.
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