Respuesta :
The ratio of boys to girls is 5 : 6
total number of girls = 312
Let total number of boys= x
so, 5 / 6 = x / 312
x = ( 312 * 5 ) / 6
x = 260 boys Ans
total number of girls = 312
Let total number of boys= x
so, 5 / 6 = x / 312
x = ( 312 * 5 ) / 6
x = 260 boys Ans
A ratio shows us the number of times a number contains another number. The number of boys in the 9th grade is 260.
What is a Ratio?
A ratio shows us the number of times a number contains another number.
Given that the ratio of boys to girls in the 9th grade is 5 to 6. Therefore, we can write the ratio as,
Ratio =Boys/Girls = 5/6
Now, as it is given that there are 312 girls. Therefore, using the ratio of the number of boys in the class is,
Boys/Girls = 5/6
Boys/312 = 5/6
Boys = (312×5)/6
Boys = 260
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