In a group of 100 persons, 80 take tea, 30 take coffee and 20 take both of tea and coffee. How many persons takes neither tea nor coffee
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In this 80 takes tea and 30 takes coffee
20 takes both tea and coffee.
Then,
80+30=110
In that group only hundred are there so,
110-20=90
20 takes both tea and coffee.
Then,
80+30=110
In that group only hundred are there so,
110-20=90
sharveshvarsini:
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in the group of 100 persons 80 take tea 30 take coffee so 80+30=110 and 110-20=90
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