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Question

In a party of 150 persons, 75 persons take tea, 60 persons take coffee and 50 persons take milk. 15 of them take both tea and coffee, but no one taking milk takes tea. If each person in the party takes at least one drink, then what is the number of persons taking milk only ?

This question was previously asked in
CDS I 2023 English Previous Year Paper (16-April-2023)
The correct answer is

30

Calculation:

Assume, the number of people who drink only milk is x.

According to the question,

60 + 15 + (x - 5) + (50 - x) + x = 150

120 + x = 150

x = 150 - 120 = 30

∴ The desired value is 30.

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