book Maths Puzzle Numerical Ability

supose 5 bales of hay are weighed 2 at a time in all possible ways. the weights in pounds are 110,112,113,114,114,116,117,118,120,and 121. how much does each bale weigh?

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The hypotenuse of a right triangle is 2.8 units long. The longer leg is 1.3 units longer than the shorter leg. Find the lengths of the sides of the triangle?