Navneet purchases some no. of oranges at the rate of 17 oranges for Rs.1. How many oranges should he sell for Rs.1 for earning 70% profit?

12 10 15 8

10

CP = \(\frac{1}{17}\) SP = \(\frac{1}{17}\) × \(\frac{170}{100}\) = \(\frac{1}{10}\) He should sell 10 oranges for Rs. 1.