Two diet soda cans are pulled from a box of 6 regular and 4 diet soda cans, without replacement. What is the probability that both are diet soda cans?

what's that

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

thats not a system of equations, that is a solution