LSAT 153 | Section 3 | Logical Reasoning: Q24

LR Question 24 Explanation

QUESTION TEXT: All of the one-way streets in the city have dedicated…

QUESTION TYPE: Must be True

FACTS: One-way streets (OWS) ➞ Bike lanes (BL)

BL ➞ No City buses (CB)

Parking (P) ➞ No bike lane (BL)

City Bus number 9 (CB9) ➞ Batcheldor Avenue (BA)

ANALYSIS: Make sure to draw out your facts to keep track of the rules that you must follow. Also, before you look at your answers, try to see if there are any deductions you can make right away. Here are the deductions we can make from these rules.

Since OWS ➞ BL, then OWS ➞ CB

Since CB9 is a city bus, we know that BA ➞ BL

___________

1. If Batchelder Avenue was a one-way street, then it would have a bike lane. From our last deduction in analysis, BA cannot be a bike lane, so this causes a contradiction.
2. CORRECT. Using the same logic from A, we know that BA must not be a one-way street.
3. We know that if there is parking, then it must not be a bike lane. But this doesn’t mean that a street that has no bike lane must have parking. So this could be true, but isn’t required to be true.
4. Using the same logic as C, this could be true but could also be false.
5. Bike lane means no city buses. But no city buses does not mean that there must be a bike lane. City buses might be missing from streets that don’t have bike lanes. Therefore, since parking is possible on streets with no bike lanes, this statement is not true.

Recap: The question begins with “All of the one-way streets in the city have dedicated”. It is a Must be True question. Learn more about LSAT MBT questions in our guide to LSAT Logical Reasoning question types.