लाभ और हानि - Profit And Loss
62. If CP of x things = SP of y things, then
Profit/Loss = 
If +ve, Profit;
If –ve, Loss
63. If after selling x things P/L is equal to SP of y things,
then P/L
Profit= -
Loss = +
64. If CP of two articles are same, and they sold at
65. If SP of two articles are same and they sold at
66. After D% discount, requires P% profit, then total increase in C.P.=
67. M.P. = 
68. Profit % = 
69. (i) For discount r1% and r2% successive discount = 
(ii) For discount r1%,r2% and r3% successive discount = 
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