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satish narayan chaudhary

· started a discussion

· 1 Months ago

frustrated (Question: 259967.0 )

even a calculator will take more than 60 minutes to complete such a calculation. please frame question keeping in mind that we just have 120 minutes for 100 questions

Question:

A man has to travel 200 km. In starting he travels 50 km at a speed of 40 km/h. After this every 50 km he travels 5 km/h faster than previous speed. At the time of returning first 50 km he travels at a speed of 10 km/hr. After this every 50 km he travels 10 km/h faster than the previous speed. Then find the average speed of whole journey?

Options:
A)

25.5 km/h

B)

27.5 km/h

C)

29.5 km/h

D)

None of these

Solution:

Ans: (b)

  

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