(1) Find gain or loss percent, when :
(i) C.P. = Rs. 12.00 and S.P. = Rs. 13.80.
(ii) C.P. = Rs. 8.00 and S.P. = Rs. 5.20
Soln. (i) Gain = RS. ( 13.80 – 12.00 ) = Rs.1.80…