Answer:
45 adults, 30 boys, 105 girls
Explanation:
Adults --- 3 units
Boys --- 2 units
Girls --- 7 units
Total
= 3 +2 +7
= 12 units
Since there are 180 people in total,
12 units --- 180 people
1 unit --- 180 ÷12= 15 people
Number of adults
= 3(15)
= 45
Number of boys
= 2(15)
= 30
Number of girls
= 7(15)
= 105