(100-100x) ^ 2 + (80-80x) ^ 2 = (10 √ 41) ^ 2 simple calculation (100-100x)^2+(80-80x)^2=(10√41)^2 It is easy to calculate X and explain the reason
100^2(1-x)^2+80^2(1-x)^2=100×41
(10000+6400)(1-x)^2=4100
(1-x)^2=1/4
1-x=±1/2
x=1/2,x=3/2
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