There are 56 boys in a class of 140 students. What is the percentage of boys?

84%

60%

40%

None of these

To find the percentage of boys, divide the number of boys (56) by the total number of students (140), and then multiply by 100:

(56 ÷ 140) x 100 = 0.4 x 100 = 40%

So, the percentage of boys is 40%.