(SAT ) pls help me answer this question
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SAT, 26.06.2019 00:00
17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?
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SAT, 29.06.2019 01:00
Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal
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