Discuss Forum
1. A survey of the town Sherpur found that 70% of the people watched the news on TV, 35% of the people read the news on newspaper and watched the TV and 25% read a newspaper and watched the TV news. What percentage of the people either watched the news on TV nor read it on the newspaper?
- A. 20%
- B. 20%
- C. 20%
- D. 20%
Answer: Option A
Explanation:
দুই আলাদা % এর থেকে common 25% বিয়োগ দিয়ে result টি হবে যা অন্তত news অথবা paper দেখে।
যারা দেখে না = 100 - ( 65 + 40 - 25) = 20%
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