A total of 339 adults and children went to a tourist attraction. There were 45 more children than adults at the tourist attraction. Given that the number of boys was 3 times the number of girls at the tourist attraction, how many boys were at the tourist attraction?
| Adults |
Children |
Total |
| 4 u - 45 |
4 u |
339 |
| |
Boys |
Girls |
|
| |
3 u |
1 u |
|
Number of girls = 1 u
Number of boys = 3 u
Number of children = 1 u + 3 u = 4 u
Number of adults = 4 u - 45
Total number of people
= 4 u + 4 u - 45
= 8 u - 45
8 u - 45 = 339
8 u = 339 + 45
8 u = 384
1 u = 384 ÷ 8 = 48
Number of boys
= 3 u
= 3 x 48
= 144
Answer(s): 144
