5 % income of a is equal to 15 % income of B and 10 % income of B is equal to 20 % income of C if the income of c is Rs. 200, then total income of A, B and C is :_________?

A. Rs. 6000
B. Rs. 18000
C. Rs. 20000
D. Rs. 14000
Explanation:
5 % A = 15 % B and 10 % B = 20 % C.
A/20 = 3B/20 and B/10 = C/5
or B = 2C. A/20 = 3/20 × 2c = 3/10
C = 3/10 × 2000 = 600
A = (600 × 20) = 12000,
B = (2 × 2000) = 4000
A + B + C = (12000 + 4000 + 2000) = 18000
Therefore, Rs. 18000/-