Taking winning by time be a positive integer and losing by time be a negative integer.
∴ Sana’s total time (winning/losing)
= (10 – 60 + 20 – 25 – 37 + 12) seconds
= (42 – 122) seconds = -80 seconds
Hence, Sana lost the race by 80 seconds or 1 min. 20 seconds.
i.e., Fatima won the race finally.