In an engineering college, there are four branches namely Computer Science (CS), Electronics (EC), Civil (CE), and Mechanical (ME). The respective ratio of the number of students in these branches is 11 : 5 : 6 : 7. What is the percentage of students belonging to CS and ME branches in the college (correct up to two decimal places)?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 62.07%.
Let the number of students in CS, EC, CE, and ME be 11x, 5x, 6x, and 7x respectively.
Total number of students = 11x + 5x + 6x + 7x = 29x
Number of students in CS and ME = 11x + 7x = 18x
Percentage of students in CS and ME = (18x/29x) × 100%
= (18/29) × 100% ≈ 62.07%
Therefore, the percentage of students belonging to CS and ME branches is approximately 62.07%.