A dealer sold a Radio at a loss of 2.5%. Had he sold it for Tk.? 100 more, he would have gained 7.5%. To gain 12.5% he should sell it for------

A Tk 2200

B Tk 1000

C Tk 1100

D Tk 1125

Correct Answer: Option D

Let C.P be Tk. x

then,(107.5 % of x) – (97.5 % of x) = 100

=> 10% of x = 100
=> x =1000

∴ desired S.P = 112.5 % of Tk. 100
= Tk.(225/2 x 1/100 x 1000)

=Tk. 1125