exam Maths Puzzle Numerical Ability

Four of the angles of a pentagon have measures, 30, 60, 120 , and 165. Find the measure of the fifth angle. (5-2)180=540
30+60+120+165=375 540-375=165 I think the answer is 165

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Please help.I do not get this problem:
Graph f:x-> |x|+2 with domain D= { -2,-1,0,1,2} The sum of two numbers is sixty-five, and if the larger number is divided by the smaller number, then quotient is three and the remainder is five. Find the numbers.