exam Maths Puzzle Numerical Ability

if the ratio of the measures of the interior angles of a quadrilateral is 3:5:7:9
what is the measure of the largest angle of the quadrilateral ?

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exam Other Question

find the difference 4/10-1/5

find the sum 1/8+1/10
Find the slope and the y-intercept.
y = 4x - 3

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