In a class of 150 students 55 speak English; 85 speak Telugu and 30 speak neither English nor Telugu. 1. How many speak both English and Telugu?2. How many speak only Telugu?3. How many speak at least one of the two languages from English and Telugu?

raje243

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• Feb 16th, 2011

Total=150English=55Telugu=85none/ neither English nor Telugu=30No. of Students who speak only one or both=150-30=120so, 120 stud's can speak english or telugu or both.then, No. of Stud's ...

pramodh holla

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• Sep 28th, 2010

In the given question. n(e^t)=n(e)+n(t)-n(e or t)

n(e and t)=n - neither who speak English nor Telugu=150-30=>120.

n(e and t)=n(e)+n(t)-n(e or t)
120=55+85-n(e or t)
n(e or t)=20.

n(only Telugu)=n(t)-n(e or t)=85-20 = 65.

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