Initially, 60% of all attendees in a school party were girls. A while later, with 8 girls and 12 boys gone, the number of girls became twice as many as the number of boys. How many people were present initially?
60:40 = Girl:Boy = 3:2. Total Girls = 3x and Total Boys = 2x Total attendees = 5x After 8 girls and 12 boys left The new ratio is Girl:Boy = 2y:1y Total attendees => 3y = 5x - 20 2y = 3x - 8 ---- 1 y = 2x - 12 ----- 2 2*(2) - 1 0 = x - 16 x = 16 Therefore initially there were 3x16 = 48 Girls & 2x16 = 32 Boys
In a school, 442 boys and 374 girls have been divided into the largest possible equal classes, so that each class of boys numbers the same as each class of girls. What is the number of classes?
A group of ten children counted out their haul from trick or treating and found they had 58 sweets. They shared them out so that each girl got seven sweets and each boy got five. How many boys and girls were in the group?
All attendees to a party are introduced to one another. 21 handshakes are made in total. How many people are attending the party?
School A has boys to girls in the ratio 5:6 and school B has girls to boys in the ratio 8:7. If the number of students in school A is at least twice as many as the number of students in school B, what is the minimum percentage of boys when both schools are considered together?
There are 96 boys and 84 girls in a class. If 60% of the total students leave the class and 'n' number of girls joined again and the ratio of boys to girls become 4:5. What is the value of 'n'?
