A. Rs. 200
B. Rs. 225
C. Rs. 250
D. None of these
Explanation:
C.P = Rs. X
 S.P = Rs. (90/100 × X) = Rs. (9/10 X)
 C.P = Rs. (80/100 × X) = Rs. (4X/5) Gain = 40%
 New S.P = Rs. (140/100 × 4X/5)
 = Rs. (28/25 X) 28/25 X – 9/10 X = 55 or X = 250