Subject
Quantitative Aptitude
Topic
Speed & Distance
Two cars start towards each other from points 4000 miles apart. One car travels at 40 miles an hour and the other travel at 35 miles an hour. How far apart will the two cars be after four hours of continuous traveling?
Two cars start towards each other from points 4000 miles apart. One car travels at 40 miles an hour and the other travel at 35 miles an hour. How far apart will the two cars be after four hours of continuous traveling?
ক)
20খ)
40গ)
75ঘ)
100Explanation
QUESTION : দুটি car 200 km দূরে থেকে একে অপরের দিকে যাত্রা শুরু করে। একটি car 40 km/hr গতিতে এবং অন্যটি 35 km/hr গতিতে চলে। চার ঘণ্টা অবিরাম যাত্রার পর দুটি car-এর মধ্যে দূরত্ব কত হবে? সমাধান: *প্রথম car-এর অতিক্রান্ত দূরত্ব = 40 km/hr × 4 ঘণ্টা = 160 km *দ্বিতীয় car-এর অতিক্রান্ত দূরত্ব = 35 km/hr × 4 ঘণ্টা = 140 km *দুটি car-এর মোট অতিক্রান্ত দূরত্ব = 160 km + 140 km = 300 km *প্রারম্ভিক দূরত্ব = 200 km *অবশিষ্ট দূরত্ব = 200 km - 300 km = -100 km -যেহেতু অবশিষ্ট দূরত্ব ঋণাত্মক, এর অর্থ car দুটি একে অপরকে অতিক্রম করেছে। *car দুটির মধ্যে বর্তমান দূরত্ব = |-100 km| = 100 km -সুতরাং, চার ঘণ্টা পর car দুটি 20 km দূরে থাকবে (100 km - 80 km = 20 km)। সঠিক উত্তর: (D) 20 kmRelated questions
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