1.

Answer»

Solution

I : S.P. = 252, Profit = 52

=> C.P. = 252-52 = 200

Since, we cannot find discount and MARKED price. I alone is not sufficient.

Similarly, II alone & III alone are insufficient.

I & II : After discount, S.P. = 252, Profit = 52

=> C.P. = 252-52 = 200

Without discount (Discount = 0 & M.P. = S.P.), Profit = 80=> M.P. = S.P. = 200+80 = 280

Thus, discount = 280-252 = 28

Discount % = $\frac{28}{280}*100 = 10\%$

Thus, I & II together are sufficient.

I & III : After discount, S.P. = 252, Profit = 52

=> C.P. = 252-52 = 200

Without discount (Discount = 0 & M.P. = S.P.),Profit % = 40%

Profit = $\frac{40}{200}*100 = 80

M.P. = S.P. = 200+80 = 280

Thus, discount = 280-252 = 28

Discount % = $\frac{28}{280}*100 = 10\%$

Thus, I & III are sufficient together.



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