Question

3.A. Do as directed
G) 70 trees
wcie Planted by Parth
frees were planted by
Pradnya on the occasion of Tree
Planta Hon Day out of these, 25 Trees
were planted in all?
Ansi​

Answer 1

Answer:

Let A be the set of trees planted by Parth and B be the set of trees planted by Pradnya.

So, and (A) = 70; n (B) = 90; n (A N B) = = 25

n (A U B) = ?

Now, n(A) + n(B) = n (A U B) + n (A

nB)

n (A U B) = 70 + 90 - 25 =

n (A U B) = 135

Hence, the number of trees planted

by Parth or Pradnya is 135.

Answer 2

Answer:

ھگد فگدفطک ھءفیطگہگ گکتفرتتےءہ ھکفےییء گکطف ءجکفف ھک