Subject
Bank Exam
Topic
Southeast Bank Ltd. - Trainee Officer - 2018
A train 150 meter long and running at a speed of 60 km hour takes 30 seconds to cross a bridge. What is a length of the bridge ?
A train 150 meter long and running at a speed of 60 km hour takes 30 seconds to cross a bridge. What is a length of the bridge ?
ক)
350 meterখ)
450 meterগ)
500 meterঘ)
650 meterExplanation
Solution: প্রশ্নে বলা হচ্ছে যে, 150 মিটার দীর্ঘ একটি ট্রেন 60 km per hour বেগে চলে তা একটি ব্রিজকে 30 সেকেন্ডে অতিক্রম করে । ব্রিজের দৈর্ঘ্য কত ? মনেকরি, ব্রিজের দৈর্ঘ্য x মিটার ট্রেনের গতিবেগ = 60 kmph = ms -1 = ms -1 এখন ঐ 30 সেকেন্ডে ট্রেন (150 + x) মিটার দূরত্ব অতিক্রম করবে । প্রশ্নমতে, [ যেহেতু গতিবেগ = দূরত্ব/সময় ] => => x + 150 = 500 => x = 500 - 150 x = 350Related questions
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