How long did Mr. X take to cover 5000 km. journey with 10 stopovers?
I. The $$i^{th}$$ stopover lasted $$i^2$$ minutes.
II. The average speed between any two stopovers was 66 kmph.
As it is clear that total time of journey will be = Time taken at stop-overs + Time taken while travelling with avg. speed 66 km/h
Hence both informations are needed to solve the question. So our answer will be D.
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