If the limousine is serviced on Saturday, then which one of the following must be true?

shafieiava on December 27, 2019

Video explanation

Can we get a video explanation of this question? In particular, I am having trouble placing the P/V combo in Monday, trying to figure out what must be true in the scenario.

Irina on December 28, 2019

@shafieiava,

I'll pass on your request to our content team, in the meantime, please see below for a written explanation.

The game requires us to determine the order of 6 vehicles being serviced - H L P R S V.

___ ___ __ __ __ __
M T W Th F S

The following conditions apply:

(1) at least one vehicle is serviced later than H.

This rule tells us that H is not serviced on Saturday.

(2) R is serviced later in the week than the van and earlier in the week than the hatchback.

V > R > H

(3) Either the pickup and the van are serviced on consecutive days or the pickup and the sedan are serviced on consecutive days but not both.

This rule tells us we must have one and only one of the following combinations

PV/ VP v PS/ SP

(4) The sedan is serviced earlier than the pickup or earlier than the limo, but not both.

This rule tells us that there are two possible orders:

P > S > L
v
L > S > P

The question asks if L is serviced on S, then which of the following must be true.
If L is serviced on S, we can infer that the following order applies:

P > S > L
V > R > H

The only option that must be true is (B) P must be serviced earlier in the week than S because we know that S is serviced earlier than L in this scenario, and S cannot be serviced earlier than both L & P, thus P must be serviced earlier than S.

I am not entirely sure I understand your question correctly, but only one car can be serviced each day, so in your hypothetical scenario - if P is serviced on M, and V on T, the rest of the vehicles could be serviced in the following order:

P V R S H L

Let me know if you have any other questions.