In a school there are total 560 students. The ratio of boys and girls is 13: 15. If 40 more boys gets admitted into the school, then what will be the new ratio of boys and girls?

Correct option is B

Given:
Total students = 560, Boys to girls = 13:15, 40 more boys admitted.
Solution:

Boys = 13/28 x 560 = 260,
Girls = 15/28 x 560 = 300.
New Boys = 260 + 40 = 300
 New Ratio = Boys : Girls = 1:1.