Question

If m.p = ₹140,sp =₹105, then discount

Answer 1

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Profit (Gain ) =  SP – CP  ( i.e SP = Profit + CP )

Loss =  CP – SP ( i.e CP = Loss + SP )

Profit Percentage = [ Profit x  100] / CP

Profit = [ profit% x CP ] / 100

Loss Percentage =  [ Loss x  100] / CP

Loss = [ Loss % x CP ] / 100

Sell Price = CP + Gain or Profit

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Answer 2

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Here is your answer.
MP = Rs 140

SP = Rs 105

Discount = MP - SP
= 140 - 105
= RS 35

Discount% = Discount×100/MP
$= \frac{35 \times 100}{140} \\ \\ = 25\%$
Therefore Discount% is 25%


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