Jack travelled from home to office at an average rate of 40 km/hour. Then he drove back home from office at an average rate of 60 km/hour. If he spent a total of 2 hours in travelling and he took the same road each way, what is the total distance (in km) that Jack travelled?
অপশনসমূহ
সঠিক উত্তর চিহ্নিত
ক
48
খ
60
গ
96
ঘ
108
🏛️ বিগত পরীক্ষার রেকর্ড:
ডানে সোয়াইপ করুন →
গড় বেগ = (2 × 40 × 60)/(40 + 60) = 48 km/h। মোট দূরত্ব = 48 × 2 = 96 km।