In an examination, there are 800 boys and 600 girls. 40% boys and 60% girls passed the examination. The percentage (correct to two decimal places) of failed students from the total students is:
Answer & explanation
Correct answer: option 3
40% =\(\frac{2}{5}\) & 60% = \(\frac{3}{5}\)
Total Number of Boys = 800 & Total Number of Girls = 600
Total passed students = \(\frac{2}{5}\) × 800 + \(\frac{3}{5}\) × 600
= 320 + 360 = 680
Total failed students = ( 800 + 600 ) - 680 = 720
Percentage of failed students = \(\frac{720}{1400}\) × 100 = 51.428%
= 51.43%