I want a solution quickly, please..

Project 1 Project 2 -300 -200 1 150 180 2 100 Y 70 100 PW 0 Project 1 Project 2 Find the value of a; b; and Y? Select one: a= 80; b= 60; Y= 120 a= 50; b= 70; Y-40 a=70; b= 120, Y=120 a=60; b= 120, Y=80 a= 30; b= 10; Y= 20 In Net cash flow 0 -20,000 11 lo 2 lo 3 40,000 IRR I? PW(15%) 6,300 What is the value of IRR? Select one: 30% 26% 18% 23% 15%