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  1. A businessman allows a discount of 10 % on the marked price. What percent above the cost price must he mark his goods to make a profit of 17 percent ?
    1. 27 %
    2. 18 %
    3. 30 %
    4. 20 %
Correct Option: C

Let C.P. of article = ₹ 100
and marked price of article = ₹ p

∴  p ×
90
= 117
100

⇒  p =
117 × 100
= ₹ 130
90

i.e. 30% above the cost price.
2nd method to solve this question.
Let, C.P. = ₹ 100, r = 17%, D = 10%, M.P. = ?
M.P.
=
100 + r
C.P.100 − r

M.P.
=
100 + 17
100100 − 10

M.P. =
117
× 100
90

⇒  30% above cost price.



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