The ratio of the number of boys and girls in a school is

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

Let the number of students in school be 100.
Boys ⇒ 60
Girls ⇒ 40
Students who do not hold scholarship :

Boys ⇒	60 × 80	= 48
	100

Girls ⇒	40 × 75	= 30
	100

Required answer = 48 + 30 = 78

∴ Required percentage =	78	× 100 = 78%
	100