62 is the average.
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The average of a series of numbers is their sum divided by however many numbers there are: in this case you would calculate: (16 + 40) / 2 =56 / 2 =28 Therefore the average of 16 and 40 is 28.
40% off something that is $130 is $78. 10% of $130 is $13.0 x 4 (40%) = $52.00 $130 - $52.00 = $78.00.
The LCM is 520.
130/100 = 130% = 1.30 1.30 x 40 = 52
52 is 40% of 130. The equation to use is 52/ .40(40%)= 130.