Dear Nanda RJ,
Ni this is not a prblem at all !
Infact the human brain as you may know forgets 15% what you have learned 1 day ago .
So after a week you may have nearly lost 50%(a little lower) of the information & so it takes time .
This is quite normal ,I have experienced it while preparing for IIT-JEE too ..!!
Hope this helped you immensely...
All the Very Best & Good Luck to you ...
Godfrey Classic Prince
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