In a class among 80 students number of boys is 40 and number of girls is 40
Source: MTRP 2018 Class 11-Multiple Choice Question: Problem 6 :-
February 17, 2021
countingSets
Problem Statement
In a class among 80 students number of boys is 40 and number of girls is 40. 50 of the students use spectacles. Which of the following is correct?[*] Only 10 boys use spectacles
[*] Only 20 girls use spectacles
[*] At most 25 boys do not use spectacles
[*] At most 30 girls do not use spectacles