Subject
Quantitative Aptitude
Topic
Speed & Distance
Two trains are running on the same route at the rate of 25 and 30 miles per hour. If the first train starts out an hour earlier, how long will it take the second train to catch up with it?
Two trains are running on the same route at the rate of 25 and 30 miles per hour. If the first train starts out an hour earlier, how long will it take the second train to catch up with it?
ক)
5 hrs.খ)
4 hrs.গ)
3 hrs.ঘ)
2 hrs.ঙ)
none of theseExplanation
QUESTION : দুটি train একই রুটে যথাক্রমে 25 এবং 30 miles per hour বেগে চলছে। যদি প্রথম train এক ঘণ্টা আগে যাত্রা শুরু করে, তাহলে দ্বিতীয় train প্রথম train-কে ধরতে কত সময় লাগবে? সমাধান: *প্রথমে, দুই train-এর মধ্যে গতির পার্থক্য নির্ণয় করি: -গতির পার্থক্য = 30 - 25 = 5 miles per hour *এখন, প্রথম train যে দূরত্ব অতিক্রম করেছে তা নির্ণয় করি: -প্রথম train-এর দূরত্ব = 25 miles/hour × 1 hour = 25 miles *দ্বিতীয় train-এর ধরার সময় নির্ণয়: -সময় = দূরত্ব ÷ গতির পার্থক্য -সময় = 25 miles ÷ 5 miles per hour = 5 hours -সুতরাং, দ্বিতীয় train প্রথম train-কে ধরতে 5 ঘণ্টা সময় লাগবে। সঠিক উত্তর: (A) 5 hrs.Related questions
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