Respuesta :
Answer:66
Step-by-step explanation:
Let number of boys be x
total number of boys and girls = x+42
7/11 *(x+42) = 42
7x + 294 = 462
7x = 168
x = 24
Total number = 24+42=66
Answer:66
Step-by-step explanation:
Let number of boys be x
total number of boys and girls = x+42
7/11 *(x+42) = 42
7x + 294 = 462
7x = 168
x = 24
Total number = 24+42=66