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In an office, every employee likes at least one of tea, coffee and milk. The number of employees who like only tea, only coffee, only milk and all the three are all equal. The number of employees who like only tea and coffee, only coffee and milkand only tea and milk are equal and each is equal to the number of employees who like all the three. Then a possible value of the number of employees in the office is

A

65

B

90

C

77

D

85

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The correct Answer is:
C
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  6. If A=[1,2,3,4,5,6] then how many subsets of A contain the element 2, 3...

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  10. If n (annB)=5, n(AnnC)=7 and n(AnnBnnC)=3, then the minimum possible v...

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