Question

70 trees were planted by party and 90 trees were planted by pradnya on the occasion of tree plantation week. Out of these; 25 trees were planted by both of them together how many trees were planted by party or pradnya?

Answer 1

Party planted 95 trees and pradnya planted 115 trees

Answer 2

trees planted by party individually = 70- 25= 45

similarly, by pradnya= 90 - 25= 65

thus they together planted= 90+70-25= 135

this example is of sets.