in a town of 20,000 residents, each reads either towns news or announcer or both newspapers out of this 20,000 residents 12420 reads town news and 11540 read Announcer news .How many residents read both the newspapers ?
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Answer:
3960
Step-by-step explanation:
Total residents in the town are=20,000
Total no. of residents who reads town news are= 12420
no. of residents who reads only town news are= 20,000-11540
= 8460
Total no. of residents who reads announcer news are= 11540
no. of residents who reads only announcer news are= 20,000-12420
= 7580
Total no. of residents who reads both are= 20,000-(7580+8460)
= 20,000-16040
=3960
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