Marcab wrote:
Can you please let me know where am I committing mistake?
Alex already covered 4 miles. In the next t hours the total distance covered by Alex will be 4+4t.
Similarly Brenda covers Rt miles in the next t hours.
Therefore, Rt=2(4+4t)t
t=8/(R-8)
Even i committed the same mistake, you have considered the time, which Brenda has spent commuting, but the question asks the amount of time,Alex has spent walking, which is 1 hr more than what brenda has spent
so 8/r-8 +1 = r/r-8
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