book Maths Puzzle Numerical Ability

Larry's time to travel 156 miles is 1 hour more than Terrell's time to travel 108 miles. Terrell drove 2 miles per hour faster than Larry. how fast did each one travel?

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book Other Question

What is Quadratic inform method
how do you solve this:
(x^2+2x)^2-5(x^2+2x)+6=0

and

x^1/2-11x^1/4+30

How do you this Solve Equation

6x^3/5-24=0 Simplify the following expression as much as possible:

3square root of 48 x square root of 12