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In a group of students, 72% can speak English and 68% can speak Hindi. If 30% of the students can speak none of the two languages, then what percentage of the group can speak both?
1. 80%
2. 20%
3. 76%
4. 70%

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Correct Answer - Option 4 : 70%

Given:

Students who can speak English = 72%

Students who can speak Hindi = 68%

Students who can speak none of the languages = 30% 

Calculation:

Number of students who can speak none of the language = 30%

Number of students who can speak atleast one language = 100 - 30

⇒ 70%

Number of students who can speak both = (72 + 68 - 70)%

⇒ 70%

∴ The number of students who can speak both languages is 70%.

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