exam Maths Puzzle Numerical Ability

A chemist is making a solution that is to be 55% chlorine. He has one solution that is 40% chlorine and another that is 65% chlorine. He wants 100 liters of the final solution. How much of each should he mix?

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exam Other Question

Solve the following inequality and list your solution using interval notation:
|-3x - 5| > 10 You are driving on a road that has a 6% uphill grade. This means the slope of the hill is 6 over 100. Approximate the amount of verticle change in your position if you drive 200 feet.

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