The difference between the CI compounded annually and SI on a certain sum for 2 years at 15% per annum is Rs. 180. Find the sum.

Based on the given graph, which statement correctly describes the pattern?
There is increase in CO 2concentration over the years.
There is decrease in CO 2concentration over the years.
There is no change in CO 2 concentration over the years.
The CO 2concentration fluctuates over these years.
A tank has two inlets which can fill it in 6 hours and 8 hours, respectively. An outlet can empty the full tank in 10 hours, if all three pipes are opened together in an empty tank how much time will they take to fill the tank completely?
5 \( \frac{5}{46} \) Hours
6 \( \frac{5}{23} \) Hours
6 \( \frac{5}{46} \) Hours
5 \( \frac{5}{23} \) Hours