Answer:
In a class of 40 learners, if 23 are girls, we can find the number of boys by subtracting the number of girls from the total number of learners.
Number of boys = Total number of learners - Number of girls
Number of boys = 40 - 23
Number of boys = 17
To find the percentage of boys in the class, we can divide the number of boys by the total number of learners and then multiply by 100.
Percentage of boys = (Number of boys / Total number of learners) * 100
Percentage of boys = (17 / 40) * 100
Percentage of boys ≈ 42.5%
Therefore, approximately 42.5% of the class are boys.
