| Which information are necessary to answer the questions asked- |
| What is the length of the train X? |
| I. Two trains X and Y running in opposite directions and cross each other in 25 seconds. |
| II. The length of the train Y is 320m and the difference between the speeds of trains X and Y is 14 km/h. |
| III. The ratio of the speed of the trains is\[19 : 26\]. |
A) Only II and III
B) Only I and III
C) Any two
D) All three together are not sufficient
E) None of these
Correct Answer: E
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