Let S and R denote the events that Sangeeta wins the match and Reshma wins the match, respectively
The probability of Sangeeta's winning chances = P(S) = 0.62 (given)
The probability of Reshma's winning chances = P(R) = - P(S)
Therefore, The probability of Reshma's winning chances = - 0.62 = [R and S are complementary]