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Samples of old matured wine were tested and their respective % of pure wine in each sample were as given in table. Remaining constituent in each sample was water

If any two samples are mixed from above. Then on maximum, the number of distinct pairs of samples will never give desired composition and more than 60% of wine is_______.

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one approach to solve this question is.

total groups of two element size is 8c2 = 28

totat - group of two elements having sum% age of wine is greater than 60%age.=  28  -  20= 20.

groups having more than 60%age wine are  BD, BF, BG, CG, DF, DG, FG, GH.

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