The ratio of the number of boys to the number of girls in a class is 4:5. If there are a total of 54 students in the class, then what is the number of boys in the class?
Answer with explanationAnswer: Option D
Ratio of boys is to girl = 4:5.
Total number of boys = 4x
Total number or girls = 5x
Total number of students : 4x+5x= 9x
9x= 54, x=6.
Total number of boys = 4x = 4×6=24.
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