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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
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?
A dinner party is to be fixed for a group consisting of 100 persons. In this party, 50 person do not prefer Veg, 60 prefer Non-veg and 10 do not prefer either Non-veg or Veg.
How many people prefer both Veg and Non-veg?
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