Question
Thu October 25, 2012 By: Ashrene

the ratio of number of boys and girls in a school is 3:2. 20% of the boys and 25% of the girls are scholarship holders. then the percentage of students who are not scholarship holders is?

Expert Reply
Fri October 26, 2012
Let the total number of students be 100
 
Boys = 100*3/5 = 60
Girls = 100*2/5 = 40
 
Boys scholarship holders = 60*20/100 = 12
Non-scholarship holders = 60 - 12 = 48
 
Girls scholarship holders = 40*25/100 = 10
Non-scholarship holders = 40 – 10 = 30
 
Students who do not have scholarship = 48 + 30 = 78
Required percentage = 78/100*100 = 78%
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