A money lender finds that due to a fall in the rate of interest from 13% to 12.5%, his yearly income reduce by rupees 104. His capital is :

A money lender finds that due to a

 fall in the rate of interest from

 13% to 12.5%, his yearly income 

reduce by rupees 104. His capital 

is :

(a) 21400
(b) 20800
(c) 22300
(d) 24000

Correct answer: b

Solution :