Most of the new cars that Regis Motors sold last year were purchased by residents of Blomenville.
Statements
quantifiers (most)
Most new cars sold were purchased by Regis Motors residents of last year Blomenville
Most new purchased by were not sold residents of by Blomenville Regis Motors
math-y comparison
Regis Motors sold more new cars last year than in any previous year.
Evaluate
On Must Be True questions, we're primarily scanning for Conditional, Quantified, or Causal ideas.
When we see Quantifiers, we know there are a couple different types of quantity overlap / relationship inferences that LSAT likes to test:
All A's are B Most A's are B Some A's are C Most A's are C ------------------- ------------------- infer: some B's are C some B's are C
Since we were given two Most claims, we should be thinking about that second one, the "Most + Most" inference. However, for that inference to work, we need both Most claims to be about the same group.
This question is actually testing a more obscure "Most + Most" inference, that has only shown up a couple times (both tests are in the 70s / 80s).
Most A's are B Most B's are ~A ------------------- infer: more B's than A's
Take any two qualities, say "likes cake" and "likes ballet".
Most people who like ballet like cake, but most people who like cake do not like ballet.
Let's pretend we're in some ballroom that contains people who just like ballet, just like cake, like both, or like neither.
Let's pretend we have 15 people who like ballet. Most of them like cake, so a minimum of 8. So we'll say 15 people who like ballet, 8 of them like cake, 7 of them don't.
Now let's think about the second fact, "Most people who like cake don't like ballet", What's the minimum number of cake lovers?
We already know there are 8 people who like cake and ballet. So 8 of the people who like cake also like ballet. But we know most of the people who like cake do not like ballet, so there would have to be at least 9 of them.
Thus the minimum number of cake lovers in 17.
We've proven that when we hear Most people who like ballet like cake, but most people who like cake do not like ballet. it tells us that there are more cake lovers than ballet lovers.
I know it's confusing to make it click. Remember, you'll have an easy form you can memorize. You're just trying to understand it so that it's easier to remember and process.
Here's one more way to talk about it. There is some number of people in the world that like both cake and ballet. Let's use the variable 'x'. There are x people in the world who like both cake and ballet.
When we say, "Most people who like ballet also like cake", we're saying that those people who like both are a majority of ballet lovers.
When we say, , it means that people who like both cake and ballet (x) are a minority of cake lovers.
If x is a majority of the ballet group (more than 50%), but a minority of the cake group (less than 50%), then that mathematically proves that the cake group is a bigger number.
x > 0.50 B x < 0.50 C
0.50 B < x < 0.50 C
B < x < C
Goal
They seem to be handing us the ingredients for this inference, Most A's are B Most B's are ~A ------------------- infer: more B's than A's
Most [sold by Regis Motors] are [bought by Blomenville's], but Most [bought by Blomenville's] are [not sold by Regis Motors]
infer: [bought by Blomenville's] > [sold by Regis Motors]
In other words, more new cars were bought by Blomenville residents than were sold by Regis Motors.