Date of equal tea prices

The price of Darjeeling tea (in rupees per kilogram) is $100 + 0.10n$, on the $n^{\text{th}}$ day of 2007 ($n = 1, 2, \dots, 100$), and then remains constant. On the other hand, the price of Ooty tea (in rupees per kilogram) is $89 + 0.15n$, on the $n^{\text{th}}$ day of 2007 ($n = 1, 2, \dots, 365$). On which date in 2007 will the prices of these two varieties of tea be equal?