Mathematics · Data Sufficiency
The question below consists of a question and two statements numbered I and II given below it. You must decide whether the data provided in the statements are sufficient to answer the question: What is the time taken by an inspection drone Alpha to cross an autonomous submarine Beta which is 600 m long moving in the opposite direction at a speed of 15 m/s? Statement I: The drone Alpha crosses a 400 m long stationary coral reef in 50 seconds. Statement II: The drone Alpha crosses a shipwreck of its own length in 20 seconds.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Neither statement I nor statement II is sufficient to answer the question.
- 2Both statement I and statement II together are necessary to answer the question.✓
- 3Either statement I alone or statement II alone is sufficient to answer the question.
- 4Statement I alone is sufficient to answer the question, while statement II alone is not sufficient.
Correct answer
Both statement I and statement II together are necessary to answer the question.
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