At a gathering,
13 of the people are adults. The remaining group of people is divided into girls and boys in the ratio of 4 : 5. Each girl is given 3 sweets and each boy is given 6 sweets. Each accompanying adult receives 8 sweets. Given that only 396 sweets are given away to boys and adults, how many less girls are there than boys?
| Girls |
Boys |
Adults |
| 2x9 |
1x9 |
| 4x2 |
5x2 |
|
| 8 u |
10 u |
9 u |
The number of children is repeated. Make the number of children the same. LCM of 2 and 9 is 18.
| |
Girls |
Boys |
Adults |
| Number |
8 u |
10 u |
9 u |
| Value |
3 |
6 |
8 |
| Total value |
24 u |
60 u |
72 u |
Number of sweets given away to boys and adults
= 60 u + 72 u
= 132 u
1 u = 396 ÷ 132 = 3
Number of less girls than boys
= 10 u - 8 u
= 2 u
= 2 x 3
= 6
Answer(s): 6
