- A13
- B7
- C15
- D6
Step-by-Step Solution
The known regions add up to 72, so ; this region is inside three ellipses. Exactly three . 7 leaves out the ? region, 15 also adds the centre 2 (all four subjects), and 6 is only the missing number.
Answer: A) 13
In a coaching centre in Kota, 78 students take at least one of Physics, Chemistry, Biology and Maths. After finding the number marked ?, how many students take exactly three subjects?
Competition practiceVenn Diagrams
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Venn Diagrams practice questions
More Venn Diagrams practice
Which expression describes the orange part of the figure?One small circle sits inside a big circle, and a third circle cuts only the big one…An office in Bhubaneswar has 96 staff, and 14 use neither the canteen nor the gym. Those…In the figure a square, a circle and an ellipse overlap. Add the numbers that lie in…A sports meet in Pune had 100 participants; the number outside the circles took part in…