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​​​​​​​Sudhir walked 7/10 km more than prem. Prem walked 5/8 km less than Rohan. Sudhir walked 3/5 km. How much did Rohan walk?
Asked by shagunsingh89.bmps | 11 Feb, 2021, 03:03: PM
The question must be:
​​​​​​​Sudhir walked 7/20 km more than prem. Prem walked 5/8 km less than Rohan. Sudhir walked 3/5 km. How much did Rohan walk?

Solution:
Let Prem walked x km.
Sudhir walked 7/10 km more than Prem.
As sudhir walked 3/5 km, we have
(7/10 + x) km = 3/5 km    i.e. x = 3/5 - 7/10 = 12/20 - 7/20 = 5/20 = 1/4
Prem walked 5/8 km less than Rohan, so we have
Distance covered by Rohan = Distance covered by Prem + 5/8 km = (1/4 + 5/8) km = 7/8 km
Answered by Renu Varma | 15 Feb, 2021, 12:03: PM

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