There are 1100 boys and 900 girls in a school. 50% boys and 40% girls are present. The total no of students present?

A) 53.5%

B) 54.5%

C) 55.5%

D) None of these

Explanation:

Total number boy = 1100 and girl = 900
Total number of boy fail (50%) = 550
Total number of girl fail ( 60%) = 540
Total failed candidates = (550 + 540) = 1090
Required percentage of failed candidates :
=

× 100
=

= 54.5% (ANS)