A shopkeeper sells his goods at 7% profit. Had he sold it ₹4200 more than he would gain 13% profit. Find initial cost price.

₹80000 ₹75600 ₹65900 ₹70000

₹70000

Let CP = x x × \(\frac{13}{100}\) - x × \(\frac{7}{100}\) = 4200 x × \(\frac{6}{100}\) = 4200 CP = x = 70000