From the salary of Smith , 40% is deducted as house rent, 20% of rest he spends on children's education and 40% of balance he spends on watching movies. If her savings are Rs.5760/- then his total salary is:

(A) 20000
(B) 30600
(C) 45000
(D) 47000

From the salary of Smith , 40% is deducted as house rent, 20% of rest he spends on children’s education and 40% of balance he spends on watching movies. If her savings are Rs.5760/- then his total salary is: