Question
Quantitative Aptitude Question on Permutations and Combinations
In a certain class, 40% of the students take coffee, 40% take tea, 50% take milk, and 10% take all the three. Also, 20% take coffee and tea, 20% take tea and milk, and 20% take coffee and milk. 10 students do not take any of the three. How many students are there in the class?
A
100
B
90
C
50
D
40
Answer
50
Explanation
Solution
The correct option is (C): 50