Subject
Bank Exam
Topic
২০২১ সাল ভিত্তিক সমন্বিত ০৭ ব্যাংক (অফিসার ক্যাশ/টেলর) - ২৪.০৫.২০২৪
A motorcyclist completes a certain journey in 5 hours. He covers one-third distance at 60 km/hour and the rest 80 km/hour. The length of the journey is-
A motorcyclist completes a certain journey in 5 hours. He covers one-third distance at 60 km/hour and the rest 80 km/hour. The length of the journey is-
ক)
240 kmখ)
270 kmগ)
300 kmঘ)
360 kmExplanation
Let the length of the journey be x km. Now, {(x/3)/60} + {(2x/3)/80} = 5 ⇒ (x/180) + (x/120) = 5 ⇒ (2x + 3x)/360 = 5 ⇒ 5x/360 = 5 ⇒ x/360 = 1 ⇒ x = 360Related questions
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