In a class, 70 students wrote two tests viz; test-I and test II 50% of the students failed in test-I and 40% of the students in test-II. How many students passed in both tests?

  In an election, two contestants A and B contested x% of the total voters voted for A and (x+20)% for B. If 20% of the voters did not vote, then x=

  In a rehabilitation programme, a group of 50 families were assured new houses and compensation by the government. Number of families who got both is equal to the number of families who got neither of the two. The number of families who got new houses is 6 greater than the number of families who got compensation. How many families got houses?

  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 milk and 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.

  In a class of 45 students, 22 can speak Hindi and 12 can speak English only. The number of students, who can speak both Hindi and English, is

  Which of the following cannot be the number of elements in the power set of any finite set?

  If A+ {1, 2, 3, 4} then the number of subsets of A that contain the element 2 but not 3, is

  If A{1,2,3,4,5,6} then how many subsets of A contain the elements 2,3 and 5?

  If P is the set of all parallelograms, and Tis the set of all trapeziums, then P intersection T is

  If A={1,2,3,4}, then the number of subsets of set A containing element 3 is