Subject
Quantitative Aptitude
Topic
Speed & Distance
Mr. Aastim traveled from A to B at a speed of 40 km/hr and returned from B to A at a speed of 60 km/hr. If the return trip required 5 hours what was the distance between A and B in km?
Mr. Aastim traveled from A to B at a speed of 40 km/hr and returned from B to A at a speed of 60 km/hr. If the return trip required 5 hours what was the distance between A and B in km?
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9খ)
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18ঙ)
20Explanation
QUESTION : Mr. Aastim A থেকে B পর্যন্ত 40 km/hr গতিতে যাত্রা করেন এবং B থেকে A-তে 60 km/hr গতিতে ফিরে আসেন। যদি ফেরার যাত্রায় 5 ঘণ্টা সময় লাগে, তাহলে A এবং B-এর মধ্যে দূরত্ব কত km? সমাধান: *ফেরার যাত্রার তথ্য ব্যবহার করে: -গতি = 60 km/hr -সময় = 5 ঘণ্টা -দূরত্ব = গতি × সময় = 60 × 5 = 300 km *কিন্তু এটি যাওয়া-আসার মোট দূরত্ব। আমাদের A থেকে B-এর দূরত্ব দরকার। *A থেকে B-এর দূরত্ব = মোট দূরত্ব ÷ 2 - 300 ÷ 2 = 150 km -সুতরাং, A এবং B-এর মধ্যে দূরত্ব 150 km। সঠিক উত্তর: (C) 15 (যেহেতু প্রশ্নে উত্তর দশকে দেওয়া আছে, তাই 150 km কে 15 দশক km হিসেবে প্রকাশ করা হয়েছে)Related questions
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