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iabhish1509
Joined: 09 Jan 2024
Last visit: 01 Feb 2026
Posts: 125
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Given Kudos: 200
Location: India
Schools: NUS BU (A$) Simon '27 (A$$) Tepper (A$)
GPA: 8
12 Jul 2024, 06:58
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Statement (1) alone is sufficient because it allows us to set up an equation based on the total distance covered by the train crossing Bridge A and solve for the length of the train.
Statement (2) alone is sufficient because it provides another scenario where the train crosses Bridge B, allowing us to set up a different equation and solve for the length of the train.
Therefore, each statement alone is enough to determine the length of the train.
Answer: D. EACH statement ALONE is sufficient to answer the question asked.
Statement (2) alone is sufficient because it provides another scenario where the train crosses Bridge B, allowing us to set up a different equation and solve for the length of the train.
Therefore, each statement alone is enough to determine the length of the train.
Answer: D. EACH statement ALONE is sufficient to answer the question asked.
12 Jul 2024, 06:58
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Train constant speed (V) = 90 m/s
(T) Cross bridge A in 10 s.
Question : the length of train, if :
(1) The length of Bridge A is 5x the length of the train. (S)
S = V x T
= 90 m/s x 10 s
= 900 m >> 5x length of train
So, 1x length train is 900/5 = 180 m.
(2) Train crosses Bridge B, which is 4x the length of Bridge A, in 35 seconds.
An ambiguity, should we use the amount of train constant speed = 90 m/s again for 2nd condition?
S = 4 x length bridge A
= 4 x 900
= 3600 m
So, I choose A for the answer.
Any idea?
Posted from my mobile device
(T) Cross bridge A in 10 s.
Question : the length of train, if :
(1) The length of Bridge A is 5x the length of the train. (S)
S = V x T
= 90 m/s x 10 s
= 900 m >> 5x length of train
So, 1x length train is 900/5 = 180 m.
(2) Train crosses Bridge B, which is 4x the length of Bridge A, in 35 seconds.
An ambiguity, should we use the amount of train constant speed = 90 m/s again for 2nd condition?
S = 4 x length bridge A
= 4 x 900
= 3600 m
So, I choose A for the answer.
Any idea?
Posted from my mobile device
RenB
Joined: 13 Jul 2022
Last visit: 02 Mar 2026
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Given Kudos: 304
Location: India
Concentration: Finance, Nonprofit
Schools: Stanford '26 Wharton '26 (D) Booth '26 (D) Yale '26 (D) CBS '26 (A$$$) Darden '26 (WL) HBS '26 (D) Ross '26 (A$$$$) LBS '26 (D) Tuck '26 (A$$) Kellogg '26 (A)
GMAT Focus 1: 715 Q90 V84 DI82 
GPA: 3.74
WE:Corporate Finance (Consulting)
Schools: Stanford '26 Wharton '26 (D) Booth '26 (D) Yale '26 (D) CBS '26 (A$$$) Darden '26 (WL) HBS '26 (D) Ross '26 (A$$$$) LBS '26 (D) Tuck '26 (A$$) Kellogg '26 (A)
GMAT Focus 1: 715 Q90 V84 DI82
Posts: 389
12 Jul 2024, 06:59
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Bunuel
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