Correct Answer - Option 3 : 50%

Given:

Discount on M.P. = 16.66%

Profit on cost price = 25%

Concept used:

S.P. = C.P. × (100 + Profit %)/100

Indirect process:-

M.P. = S.P. × 100/(100 – discount %)

Calculation:

Let the cost price of the Bluetooth speaker be 100

Selling price of the Bluetooth speaker to get 25% profit = 100 × (100 + 25)/100 = 125

Discount = 16.66% = 1/6

Marked price of the Bluetooth speaker before giving the 16.66% discount = 125 × 6/(6 – 1)

⇒ 125 × 6/5

⇒ 25 × 6

⇒ 150

Percentage of price marked above the cost price = 50%

∴ Price marked above the **cost price is 50%**.