Answer:
x=18
y=24
Step-by-step explanation:
Let the number of boys in the camp = x
Number of girls = y
[tex]\frac{x}{y}=\frac{3}{4}\\x=\frac{3y}{4} [/tex] -----(A)
Total number of students = 42
x+y=42
Putting value of x from A
[tex]\frac{3y}{4}+y=42\\\frac{3y+4y}{4}=42\\\frac{7y}{4}=42\\y=\frac{42 \times 4}{7}\\y=24[/tex]
Putting this value in A and solving for x
[tex]x=\frac{3 \times 24}{4}\\x=18[/tex]
