suppose the X milligram of compound one and Y milligram compound two
X *0.8 + Y *0.4 = 50 1
X *0.1 +Y 0.2 = 20 2
solve this two equations by elimination method
equation 1 *0.1 and equation 2 *0.8
(0.04-0.16)Y = (5-16)
Y = 91.66 mg
put the values of Y in equation 1
X = 16.67 mg
I hope it will be help full
If you feel any doubt or difficulties in calculation plz let me know I will explain.
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