exam Maths Puzzle Numerical Ability

Please help me solve this problem.

Two angles are supplementary. The measure of one is twice the measure of the other. What is the measure of the larger angle?

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exam Other Question
Find the variation constant and an equation of variation where y varies directly as x and y=8 when x=4.
The variation constant is k=_.
The equation of variation is y=_ If F(x)= x(1-x), find [F(x+h) -F(x)/h]