Shaloo sold a mobile phone for ₹1,950 at a loss of 25%. At what price should she have sold it to get a profit of 30% ?

₹3,380

SP of mobile phone = Rs. 1950

Loss = 25%

CP = (100 × SP)/(100 – L%)

SP = [CP × (100 + P%)]/100 

Here, SP, CP, P and L are selling price, cost price, profit and loss respectively

CP = (100 × SP)/(100 – L%)

⇒ (100 × 1950)/(100 – 25)

⇒ 2600

Now, 

SP = [CP × (100 + P%)]/100 

⇒ [2600 × (100 + 30)]/100 = 3380