alleryA 180 m రైలు 20 m/s వద్ద 420 m సొరంగంలోకి ప్రవేశిస్తుంది. దాన్ని పూర్తిగా క్లియర్ చేసే సమయం వచ్చిందా?
A24 s
B30 s
C21 s
D36 s
Answer & Solution
Correct answer: B. 30 s
రైలు సొరంగం క్లియర్ చేయడానికి 180 + 420 = 600 m ప్రయాణించాలి, 600 ÷ 20 = 30 సెకన్లు పడుతుంది.
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