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Munagala Janardhana Reddy

· started a discussion

· 1 Months ago

solution (Question: 269914.0 )

by allegation and mixtures
T1 : T2 = (140 - 50) : (50 - 40) = 90 : 10 = 9 : 1

time taken at 40 KMPH = (9/10) x 16 = 14.4 hrs =14hrs .24mins

Question:

Hemant covers a part of the journey at 40 kmph and the balance at 140 kmph taking total hours 16 hours to cover the distance of 800 km. How many hours has he been driving at 40 kmph?

Options:
A)

14 hrs 40 min

B)

14 hrs

C)

14 hrs 24 min

D)

16 hrs

Solution:

Ans: (c)

  

dheeraj

· commented

· 1 Months ago

thanks for better method

Varun

· commented

· 1 Months ago

thanks
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