Question

The price of Darjeeling tea (in rupees per kilogram) is 100+0.1n, on the n${}^{th}$ day of 2007 (n=1,2…100), and then remains constant. On the other hand, the price of Ooty tea (in rupees/kilogram) is 89+0.15n, on the n${}^{th}$ day of 2007 (n=1,2…365). On which date in 2007 will the prices of these two varieties of tea be equal?

• A. April 11
• B. May 20
• C. April 10
• D. June 30
• E. May 21

Answer 1

The correct option is B May 20

Option (B) is the correct answer. Check the video for the approach.