crystaltaebts crystaltaebts

27-11-2018
Mathematics

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in a class of 30 pupils, there are 18 girls. what percentage of the pupils are boys

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jimrgrant1 jimrgrant1

27-11-2018

Answer:

40%

Step-by-step explanation:

Express the boys as a fraction of the whole class then multiply by 100%

number of boys in class = 30 - 18 = 12

percentage of boys = [tex]\frac{12}{30}[/tex] × 100% = 40%

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