let mode is 17 and mean is 20 so find median
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according to formula.
mode=3×median-2×mean
mode=17
mean=20
median=x
17=3x-40
57=3x
x=19
median=19
mode=3×median-2×mean
mode=17
mean=20
median=x
17=3x-40
57=3x
x=19
median=19
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