The ratio of boys to girls in a school is 7:5. If 20 more girls join the school, the new ratio of boys to girls becomes 7:6. What is the total number of students in the school initially?

விடையைக் காட்டு & விளக்கம்

விடை: (B) 240

விளக்கம்

Correct answer: (B) 240, as per the official SSC answer key. [Quantitative Aptitude]