There were 500 ₹ of water in a tank. Mr Tan used 199 ? of water on Mondoy and 156 ₹ of wat on Tuesday.

It seems like there might be a typo in your message regarding the amount of water used by Mr. Tan. You mentioned "199 ?" for Monday, which seems incomplete. Assuming you meant to say Mr. Tan used 199 ₹ of water on Monday and 156 ₹ of water on Tuesday, we can calculate the remaining amount of water in the tank. 1. **Initial amount of water in the tank**: 500 ₹ 2. **Water used on Monday**: 199 ₹ 3. **Water used on Tuesday**: 156 ₹ Now, let's calculate the total water used: Total water used = Water used on Monday + Water used on Tuesday Total water used = 199 ₹ + 156 ₹ = 355 ₹ Now, subtract the total water used from the initial amount: Remaining water = Initial amount - Total water used Remaining water = 500 ₹ - 355 ₹ = 145 ₹ So, after Mr. Tan's usage, there would be 145 ₹ of water left in the tank. If you meant something different for the amount used on Monday, please clarify!