In a room containing 28 people, there are 18 people who speak English, 15 people who speak Hindi and 22 people who speak Kannada, 9 persons speak both English and Hindi, 11 persons speak both Hindi and Kannada where as 13 person speak both Kannada and English. How+ many people speak all the three languages?
Answers
Answered by
18
Answer:
6
Step-by-step explanation:
Total no. of people = 28
no. of people who speak English = 18
no. ------------------------------- Hindi = 15
no. ------------------------------- Kannad = 22
no . --------------------------- both english and hindi = 9
no. --------------------------- both hindi and kannad = 11
no. ----------------------- both english and kannad = 13
let, people who speak all 3 languages be x
Total no. of people = ( Hindi + English + Kannad ) - ( hindi and english + english and kannad + kannad and hindi ) + x
28 = ( 15+22+18 ) - ( 9+11+13 ) + x
x = 28 - 55 + 33
x = 6
Answered by
3
Answer:
there are 6 people who speak all the three languages
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