exam Maths Puzzle Numerical Ability

The figure illustrates the apparatus for a tightrope walker. Two poles are set a(52 feet) apart, but the point of attachment P for the rope is yet to be determined. If the total

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exam Other Question

The steepness, or grade, of a road is expressed as a percent. If a road rises 3 feet for every 24 horizontal feet, what is the sope of the road? what percent grade is this? A tank holds 80 gallons of chemical solution. Currently the solution has a strength of 30%. How much of this should be drained and replaced with a 70% solution to get a final strength of 40%?