polishing v2

Author: ProRasel

Computations/Calculate-Grades.md

@@ -41,4 +41,4 @@ After that, we are running a simple if-else to determine the grade.
 [![Next Page](../assets/next-button.png)](Gravitational-Force.md)
  
 
-###### tags: `programmig-hero` `python` `float` `int` `math`
+###### tags: `programmig-hero` `python` `python3` `problem-solving` `programming` `coding-challenge` `interview` `learn-pyton` `python-tutorial` `programming-exercises` `programming-challenges`  `programming-fundamentals` `programming-contest`  `python-coding-challenges` `python-problem-solving` 

Computations/Complex-Interest.md

@@ -5,8 +5,9 @@ Take money borrowed, interest and duration as input. Then, compute the compound
 
 ###   Hint
 Compound interest formula is:
-
+```python
 A = P(1+r/100)t
+```
 
 Here, P is the principal amount; it is the amount that you borrowed. r is the interest rate in percentage and t is the time.
 
@@ -43,4 +44,4 @@ To apply the same power on multiple things, put them inside parentheses and then
 [![Next Page](../assets/next-button.png)](Calculate-Grades.md)
  
 
-###### tags: `programmig-hero` `python` `float` `int` `math`
+###### tags: `programmig-hero` `python` `python3` `problem-solving` `programming` `coding-challenge` `interview` `learn-pyton` `python-tutorial` `programming-exercises` `programming-challenges`  `programming-fundamentals` `programming-contest`  `python-coding-challenges` `python-problem-solving`