Question
In a school, there is a ratio of 4 : 3 between boys and
girls. If the number of girls is increased by 10%, their number is 363. What is the total number of students in the school now?Solution
ratio of girls and boys =3:4 Let the number of girls =300 and boys =400. total student =300+400=700 number of girls after 10% increase =300Ă—110/100 =330 ATQ- 330 =363 1 =363/330 then total student =363/330Â Ă—700 =770 student.
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