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  1. A trader purchased a gift box for Rs. 150. What should be the marked price on the gift box so that after allowing a discount of 10%, he makes a profit of 10%?
    1. Rs. 180
    2. Rs. 183.3
    3. Rs. 186.6
    4. Rs. 190
Correct Option: B

Here , C.P. of gift box = Rs. 150
Suppose Marked price of gift box = Rs. y
According to the question,
( 100 - 10 )% of y = ( 100 + 10 )% of 150

90y
=
150 × 110
100100

⇒  90y = 150 × 110
⇒ y =
150 × 110
= Rs. 183.3
100



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