Explanation:

Tom’s salary is 125% of Tina’s salary
Tito’s salary is 80% of Tina’s salary
The total of all the three salaries is Rs.61,000
Let the salary of Tina's salary be x
A/q
=> x + 125% of x + 80% of x = 61000
=> x + 1.25x + 0.8x = 61000
=> 3.05 x = 61000
=> x = 61000/3.05 = 20000
Now,
Tina salary = x = Rs 20000
Tito’s salary is 80% of Tina’s salary
= 80% of x
= 0.8 × 20000
= Rs 16000