Question

70 trees wereplanted by parth and 90 trees were planted by pradnya on the occasion of three plantation week out of these ;25 trees were planted by both of them how many trees were planted by parth or pradnya?​

Answer 1

Answer:

135 trees were per planted by  Parth or by Pradhyumn

Step-by-step explanation:

AS PER SHOWN IN FIG

n(A)=70, n(B)=90

and n( A∩ B)=25

Now n(AU B) =n(A)+n(B)-n(A∩ B)

=90+70-25

=135

135 trees were per planted by  Parth or by Pradhyumn