Badri planned to travel to his favourite destination in three different transport modes. he travels 50 km by car, at a speed of 70 km/hr. he covers next 100 km by train at 150 km/hr and rest 400 km, he covers by flight travelling at a speed of 800 km/hr. what is the approximate average speed during the whole journey? (in km/hr)
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1st d=50km s=70km/hr
Time=50/70=5/7
2ND D=150km s=400 km/hr
Time=150/400=3/8
3rd=d=400km s=800km/hr
Time=400/800=1/2
50+400/70+150+800=450/1020
45/102 answer
Time=50/70=5/7
2ND D=150km s=400 km/hr
Time=150/400=3/8
3rd=d=400km s=800km/hr
Time=400/800=1/2
50+400/70+150+800=450/1020
45/102 answer
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