At a school carnival, each boy received 2 packets of sweets and each girl received 3 packets of sweets. Each accompanying adult received 4 packets of sweets.
49 of the people at the school carnival were adults. The ratio of the number of boys to the number of girls at the carnival was 5 : 8. Given that only 3024 packets of sweets were given away, how many people were there at the carnival?
Boys |
Girls |
Adults |
5x13 = 65 u |
4x13 = 52 u |
5x5 = 25 u |
8x5 = 40 u |
52 u |
|
Boys |
Girls |
Adults |
Number |
25 u |
40 u |
52 u |
Value |
2 |
3 |
4 |
Total Value |
50 u |
120 u |
208 u |
Fraction of the people who were children
= 1 -
49=
59 The number of children is the combined repeated identity. Make the number of children the same. LCM of 13 and 5 is 65.
Number of packets of sweets given away
= 25 u x 2 + 40 u x 3 + 52 u x 4
= 50 u + 120 u + 208 u
= 378 u
378 u = 3024
1 u = 3024 ÷ 378 = 8
Number of people at the carnival
= 65 u + 52 u
= 117 u
= 117 x 8
= 936
Answer(s): 936