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Out of group of 200 students who know at least 1 of the 3 languages, 100 students know English, 80 students know kannada and 70 students know know hindi. If 10 students kniw all the 3 languages then find the find the number of students who exactly know 2 languages

Posted by Veena Rao 4 years, 10 months ago

CBSE > Class 11 > Mathematics

2 answers

Ishika Kumari Ishika Kumari 4 years, 10 months ago

My answer wrong or right

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Ishika Kumari Ishika Kumari 4 years, 10 months ago

250 student

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CBSE > Class 11 > Mathematics