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Mathematics
OpenStudy (anonymous):

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

Parth (parthkohli):

It'd surely be somewhere between 50 and 60..

Parth (parthkohli):

So, 50 < S < 60

OpenStudy (anonymous):

Is there an explanation?

Parth (parthkohli):

Well that's it.

Parth (parthkohli):

I told you it's a number between 50 and 60, so it's less than 60 and more than 50.

OpenStudy (anonymous):

Ahhhh. Gets :) Thanks :DDDDD

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