Advertisement Remove all ads

The ratio of number of boys and girls in a school is 3 : 2. If 20% of the boys and 30% of the girls are scholarship holders, find the percentage of students who are not scholarship holders. - Mathematics and Statistics

Sum

The ratio of number of boys and girls in a school is 3 : 2. If 20% of the boys and 30% of the girls are scholarship holders, find the percentage of students who are not scholarship holders.

Advertisement Remove all ads

Solution

 

Let the total number comman multiple be 'x'
No of boys = 3x
No of girls = 2x
Total number of students = 3x + 2x = 5x

No of boys who are not scholarship holder `=80/100xx3x=(12x)/5`

No of boys who are not scholarship holder `=70/100xx2x=(7x)/5`

Total No of student who are not scholarship holder `=(12x)/5+(7x)/5=(19x)/5`

Percentage No of student who are not scholarship holder `=((19x)/5)/(5x)xx100=((19x)/(25x))xx100=76%`

76% students are not scholarship holders

 
Concept: Ratio, Proportion and Partnership
  Is there an error in this question or solution?
Advertisement Remove all ads
Advertisement Remove all ads

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×