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Sir please explain me both the questions above.... This question is from topic sets...
Sir please explain me both the questions above....This question is from topic sets...

```
2 years ago

Arun
25768 Points
```							n(A) = 40% of 10,000 = 4,000n(B) = 20% of 10,000 = 2,000n(C) = 10% of 10,000 = 1,000n (A$\tiny \cap$ B) = 5% of 10,000 = 500n (B$\tiny \cap$ C) = 3% of 10,000 = 300n(C$\tiny \cap$ A) = 4% of 10,000 = 400,n(A$\tiny \cap$ B$\tiny \cap$ C) = 2% of 10,000 = 200We want to find n(A  only) = n(A)  –  [n(A$\tiny \cap$ B) + n(A$\tiny \cap$ C)] + n(A$\tiny \cap$ B$\tiny \cap$C)= n(A  only) = 4000  –  [500 + 400] + 200 = 4000 –  700 = 3300 Similarly, n(B only) = n(B)  –  [n(A $\tiny \cap$ B) + n(B$\tiny \cap$ C)] + n(A $\tiny \cap$ B $\tiny \cap$C)n(B only)  = 2000 - [500+300]+200 = 1400 n(none of A, B and C) = 10,000 - [n(A)+n(B) + n(C) - n (A $\tiny \cap$ B) - n(B$\tiny \cap$ C) - n (C$\tiny \cap$ A) + n(A$\tiny \cap$B$\tiny \cap$ C)]n(none of A, B and C) = 10,000 - [4000+2000+1000 - 500-300-400 + 200]n(none of A, B and C) = 4000
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2 years ago
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