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Maths Puzzle
Numerical Ability
Help!!! (please) (thank you)
a bicyclist rode into the country for 5 h in returning her speed was 5 mi/h faster and the trip took 4h what was her speed each way?
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book Other Question
The Jones family drove to Disneyland at 50 mph and returned on the same route at 40 mph. find the distance to Disneyland if the total driving time was 7.2 hours.
Factor: 25x^2-1