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Paul travels from Laguna to Alabang at 60 kph and then back to Laguna over the same route at 50 kph. If S is her average speed for the round trip, then
50 < S < 55
49
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It'd surely be somewhere between 50 and 60..
So, 50 < S < 60
Is there an explanation?
Well that's it.
I told you it's a number between 50 and 60, so it's less than 60 and more than 50.
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Ahhhh. Gets :) Thanks :DDDDD
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