exam Maths Puzzle Numerical Ability

The cost C, in thousands of dollars, to remove p% of the pollutants in a lake is given by C(p) = 50p / 100-p, 0 < or equal to p < 100. Find the cost of removing 20% of the pollutan

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exam Other Question

The base angles of an isosceles triangle are congruent. If the measure of each of the base angles is twice the measure of the third angle, find the measure of all three angles. Find all sets of three consecutive multiples of 11 for which the sum of the lesser numbers is greater then 100 and the sum of the two greater numbers is less than 200