There are 27 pupils in total. There are twice as many boys as there are girls. How many boys and girls are there?

Question

MrRoyal · Answer

The number of puplis is an illustration of linear equations , and there are 18 boys and 9 girls in the class 
 How to determine the number of boys and girls? 
 The given parameters are: 
 Total = 27 
 Boys (b) = 2 * Girls (g) 
 So, we have: 
 b + g = 27 
 b = 2g 
 Substitute b = 2g in b + g = 27 
 2g + g = 27 
 Evaluate 
 3g = 27 
 Divide both sides by 3 
 g = 9 
 Substitute g = 9 in b = 2g 
 b = 2 * 9 
 Evaluate 
 b = 18 
 Hence, there are 18 boys and 9 girls in the class 
 Read more about linear equations at: 
 https://brainly.com/question/14323743 
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MrRoyal · Answer

There are 18 boys and 9 girls in the class, derived from setting up and solving a system of equations. The total number of pupils is 27 with twice as many boys as girls. By substituting the known values, we found the respective counts of boys and girls. 
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There are 27 pupils in total. There are twice as many boys as there are girls. How many boys and girls are there?

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