The venn diagram shows the number of students in a class ...
The venn diagram shows the number of students in a class who like reading(R), dancing(D) and swimming(S). How many students like dancing and swimming?
7
9
11
13
Correct answer is A
student that like swimming = x + 2
where 2 is the number of students who like reading, dancing and swimming. To find x from the venn diagram of swimming
6 +3 + 2 + x = 16
11 + x = 16
x = 16 - 11 = 5
no. of students that like dancing and swimming
x + 2 = 5 + 2 = 7
Similar Questions
Simplify: \(\frac{3}{4} \div 1\frac{1}{4} \times (1\frac{1}{2} - \frac{2}{3})\)...
Find the smallest value of k such that 2\(^2\) x 3\(^3\) x 5 x k is a perfect square....
Simplify \(\frac{2^{\frac{1}{2}}\times 8^{\frac{1}{2}}}{4}\)...
Simplify; \(\frac{1}{2}\sqrt{32} - \sqrt{18} \sqrt{2}\)...
At what rate will the interest on N400 increases to N24 in 3 years reckoning in simple interest? ...