Home
Class 6
MATHS
If n(A)=20 and n(A nn B)=5, then find th...

If `n(A)=20` and `n(A nn B)=5`, then find the value of `n(A-B)`.

Text Solution

Verified by Experts

The correct Answer is:
15
Given `n(A)=20, n(A nn B)=5`
`n(A-B)=n(A)-n(A nn B)`
`=20-5=15`
Promotional Banner

Topper's Solved these Questions

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION|5 Videos

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST|15 Videos

  • SETS

    PEARSON IIT JEE FOUNDATION|Exercise VERY SHORT ANSWER TYPE|21 Videos

  • RATIO AND PROPORTION

    PEARSON IIT JEE FOUNDATION|Exercise Crossword|1 Videos

  • STATISTICS

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST|10 Videos

Similar Questions

Explore conceptually related problems

If n(A)=x, n(B)=2[n(A)], n(A uu B)=2017 and n(A nn B)=1007 . Find the value of x .

If n (A)=10, n(B)=21 and n(A nn B)=5 , then find n(A uu B) .

If n(A nn B')=5 ,n(B nn A')=6 ,n(A nn B)=4 then the value of n(A uu B) is

If n (A Delta B) = 12 and n(A nn B) = 3 , then find the greatest possible value of n(A xx B) .

If n(A)=50,n(B)=20 and n(A nn B)=10 then n(A Delta B) is

If n(A) =8 , n(B)=12 and n (A nn B)=6 then, find n(A uuB)

There are three events A, B, C such that n(B)=230, n(bar(A)nn B nnbar(C))=100, n(A nn B nnbar(C))=50 and n(A nn B nn C)=10 , then value of n(A nn B nn C) is

Let A and B be two finite sets such that n(A) = 20, n(B) = 28 and n(A ∪ B)=36 , then find n(A ∩ B) .

If n(A)=4, n(B)=6 and n(A uu B)=8 , then find n(A nn B) .