exam Maths Puzzle Numerical Ability

The sum of three consecutive even integers is less than or equal to 42. Find the largest se of these numbers.

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exam Other Question

The larger of two supplementary angles measures 20 degrees less then 4 times the measure of the smaller, how do i figure out both of the angle measurements? a chemist needs 130 milliliters of a 79% solution but has only 29% and 94% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.