1. Multiple choice questions

1. If $n(A \cup B \cup C) = 100$, $n(A) = 4x$, $n(B) = 6x$, $n(C) = 5x$, $n(A \cap B) = 20$, $n(B \cap C) = 15$, $n(A \cap C) = 25$ and $n(A \cap B \cap C) = 10$, then the value of $x$ is 15253010.

 

2. If $J =$ Set of three sided shapes, $K =$ Set of shapes with two equal sides and $L =$ Set of shapes with right angle, then $J \cap K \cap L$ is Set of equilateral trianglesSet of right angled trianglesSet of isoceles right trianglesSet of isoceles triangles.

 

3. In a city, $40\%$ people like only one fruit, $35\%$ people like only two fruits, $20\%$ people like all the three fruits. How many percentage of people do not like any one of the above three fruits? 158105