thirty seven students of class8 participate in competitions held on the annual day .twenty of them take part in essay writing ,twenty take part in singing and twenty three in dancing .nine students take part in both singing and essay writing ,eleven take part in both singing and dancing while thirteen take part in both essay writing and dancing .If five take part in all the three ,find the number of :(i)students who do only singing (ii) students who do none of these activities.
Answers
Answered by
0
Answer:
a) 20 b) 12
Step-by-step explanation:
Students in singing = 20
Students in essay writing = 20
Students in dancing = 11
Total students = 20+20+11
= 51 students
Students in both singing & essay writing = 9
Students in both singing & dancing = 11
Students in both essay writing & dancing = 13
Students in all the three activities = 5
Total students = 9+11+13+5
= 39 students
a) Students in only singing activity = 20
b) Students in none of these activities = 51-39
= 12. students
Similar questions