In a hoatel of 750 students .430 students are attending for painting class and 195 students are attending for both painting and music class
Answers 2
Answer:
235 is not attending painting class
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Author:
pixieszbh
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Concept:
To get the union of two sets A and B, use the union B formula. The union may be obtained by combining all of A and B's components into one set and deleting duplicates.
Given:
Total students = 750.
The number of students attending painting class = 430.
The number of students attending both painting and music classes = 195.
Find:
The number of students attending music class.
Solution:
Total students P(A∪B) = 750.
Painting class P(A) = 430.
The music class is P(B).
Paint and music class P(A∩B) = 195.
P(A∪B) = P(A) + P(B) - P(A∩B)
750 = 430 + P(B) - 195
P(B) = 750 - 430 +195
P(B) = 515.
Hence, the total students attending music class are 515.
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lillyeaim
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Explanation:
(आज प्रातःकाल कार्यक्रम का उद्घाटन सम्पन्न हुआ।) प्रातः उत्थाय अध्ययन लाभं ददाति। (प्रातः उठकर पढ़ाई करना लाभदायक होता है।) सूर्यः प्रातःकालस्य वेला सर्वेषु जनेषु नव -जीवनं संचरति ।
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