exam Maths Puzzle Numerical Ability

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Divide--

p^2 - q^2/p+q divided by p-q/p+q

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exam Other Question

The ratio of boys to girls inthe auditorium was 4 to 5. If there were 40 boys in the auditorium, how many girls were there? (hint: in this problem, the ratio 4 to 5 means that for every 4 boys there were 5 girls.) For each inequality use the restrictions and sketch the graph with shading, then state the solution set.

y = /x/ + 2 f(x) < 7