1.

The sum of the numbers of boys and girls in a school is 150. If the number of boys is x,the number of girls becomes x% of the total number of students. The number of boys is:1). 902). 503). 404). 60

Answer»

According to QUESTION$x+\frac{x\times150}{100}=150$$\Rightarrow x+\frac{3}{2}x=150$$\Rightarrow 2x+3x=2\times 150=300$$\Rightarrow 5x=300 \Rightarrow x=60$



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