Calculate the marked price of an article where discount rate is 10% and amount of discount is Rs.200.​

Rs :140

Step-by-step explanation:

M.P. = Rs. 200, Discount =12.5%

∴S.P.=200−12.5 % of 200

=200−

100

12.5

×200

=200−25.0=175

Therefore, profit =25 %

∴C.P.=

100+profit%

100

×S.P.=

125

175×100

= Rs. 140.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square