In a grade 7 class of 45 students, 40% are girls. How
many boys are there in the classroom?
A.17
B. 27
C. 37
D. 47
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In a grade 7 class of 45 students, 40% are girls. How
many boys are there in the classroom?
A.17
B. 27
C. 37
D. 47
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Answer:
27 boys
Step-by-step explanation:
Step 1: Find the percent of boys.
100% - 40% = 60%
Therefore, the 60% of the 45 students are boys.
Step 2: Multiply
60% = 0.60 × 45 = 27 boys
40% = 0.40 × 45 = 18 girls.
Therefore, there are 27 boys and 18 girls in the classroom. And a total of 45 students.