sayantanc2k
This question tests understanding of "If and then conditional (third type)".
What is a type 3 conditional?The type 3 conditional refers to an impossible condition in the past and its probable result in the past. These sentences are truly
hypothetical and
unreal because it is now too late for the
condition or its
result to exist. There is always some implication of regret with type 3 conditional sentences. The reality is the opposite of, or contrary to, what the sentence expresses. In type 3 conditional sentences, the time is the
past and the situation is
hypothetical.
Structure of Type 3 conditional:
In a type 3 conditional sentence, the tense in the "if" clause is the past perfect, and the tense in the main clause is the perfect conditional or the perfect continuous conditional.
If clause (condition) + Main clause (result)
If + past perfect + perfect conditional or perfect continuous conditional
If this thing had happened + that thing would have happened.
You would have gotten wet + if it had rained.
With this in mind, let us solve the question at hand:
Quote:
Many passengers missed the train: if its arrival
was announced on the station’s public address system, then they would not.
Many passengers missed the train in past. It is now an irrefutable fact and nothing can change the results of it. So, the sentence that follows, "
if its arrival was announced on the station’s public address system, then they would not." tries to state an
impossible condition (as we can not go back in time and make the public announcement) and states a
probable result had that
announcement been done. So, this sentence clearly qualifies in the "Type 3 conditional" structure, as the underlined sentence truly states a
hypothetical and
unreal action whose
result is impossible to occur. Among the given choices, only option
(D) makes the cut.
Many passengers missed the train:
if its arrival had been announced on the station’s public address system,
then they would not have (missed the train). Notice the ellipsis at play here as, "missed the train" is implied, and since it exists in the sentence already
(Many passengers missed the train), it is alright to omit it at the end to preserve the conciseness.
P.S.
sayantanc2k, I love your questions, perhaps the only thing close to actual GMAT SC questions, so it's a privilege to attempt to solve them.
But, I am having a kind of epiphany or a déjà vu to this question with regards to posting an answer to it. I believe I posted an answer to this question earlier. Or maybe I had too much "good stuff" in the week bygone.