Correct Answer - Option 1 : 4000
Given:
Successive discounts of the earphone was 15% and 8%
Selling Price of the earphone is Rs. 3128
Formula used:
Net discount = [a + b - (ab)/100]%
Where,
a = first discount rate of the earphone
b = second discount rate of the earphone
Calculation:
Let cost price of the earphone be Rs. x
a = 15%, b = 8%
Net discount = [15 + 8 - (15 × 8)/100]%
⇒ Net discount = [23 - (120)/100]
⇒ Net discount = [23 - 1.2] = 21.8%
⇒ Marked up price of the earphone × (100 - Net discount)/100 = 3128
⇒ x × (100 - 21.8)/100 = 3128
⇒ x × 78.2/100 = 3128
⇒ x = 4000
∴ The marked up price of the earphone is Rs. 4000.
