exam Maths Puzzle Numerical Ability

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8(1+1/2)^2 +22(1+1/t)+15=0
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exam Other Question

How would you solve the following system of linear inequalities:

2[less than or equal to]x[less than or equal to]5
1[less than or equal to]y[less than or equal to]3
In the triangle ABC, the measure of angle A is 2 degrees less than 1/5 of the measure of triangle C. The measure of triangle B is 5 degrees less than 1/2 of the measure of angle C. Find the measures of the three angles of the triangle.