book Maths Puzzle Numerical Ability

One of two supplementary angles is 4degrees more than 1/3 of the other angle. Find the measure of each of the angles.

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book Other Question

A circle has a circumference of 20(pi)meters. Sorry There is no key stroke for pi. Find the radius of the circle. Thanks. An orange has 20 fewer calories than a banana. If 7 bananas have the same number of calories as 9 oranges, how many calories are in a banana?