exam Maths Puzzle Numerical Ability

A bicyclist rode into the country for 5 hours. In returning, her speed was 5 miles an hour faster and the trip took 4 hours. what was her speed each way?

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exam Other Question

Evaluate the foloowing expression:

the square root of the total of the following: (x) + the square root of (x+2)
Can someone help e solve this problem?

I need to solve: 10x - 1/4 = 9x + 3/8

Thank you,
sher