SEE Math | 3. If n(U) = 200, n (M) = 2x, n (E) = 3х.. | Class 10 Government Book

Question: 3. a) If n(U) = 200, n (M) = 2x, n (E) = 3 х ,
n(MNE) = 60 and n(MuE) = 40 find 15
the value of x.
b) If n(U) = 350, n(A) = 200, n(B) = 220 and n(AnB) = 120, then find
n(AuB) and n(AuB).
c) d) Ifn(A) = 35 and n(A) = 25, then find the value of n (U).
Out of two sets P and Q, there are 40 elements in P, 60 elements in (PUQ)
and 10 elements in (P^Q). How many elements are there in Q?

Dibas is working through the solution to a set theory question from the compulsory mathematics subject for class ten. The question is from a textbook provided by the Government of Nepal.

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