Question

# In a class of $$60$$ students, the number of girls is one third the number of boys. Find the number of girls anf boys in the class.

Solution

## Let $$x$$ be the number of boys in the classSo. the number of girls is $$60-x$$$$ACQ$$,$$\Rightarrow \ 60-x=\dfrac x3$$$$\Rightarrow \ 180-3x=x$$$$\Rightarrow \ 4x=180$$$$\Rightarrow \ x=\dfrac {180}{4}$$$$\Rightarrow \ x=45$$The number of boys in the class are $$45$$.Hence, the number of girls will be 60-45=15\$Maths

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