Read the given statement and the arguments carefully and select the appropriate answer from the given options.
Statement:
Schools should encourage self-discipline among children of all ages.
Arguments:
I. Children till the age of 7 years are not mature enough to understand the concept of discipline.
II. Discipline lasts longer and is more effective when instilled by oneself than by others from outside.
Which of the following states bagged the first prize in the 3rd National Water Awards presented by then President of India, Shri Ram Nath Kovind in March 2022?
The present ages of Kamal and Keerthi are in the ratio 3 : 5. After 9 years, the ratio of their ages will become 3 : 4. The present age of Keerthi is ________.