Adds find the percentage python solution

Author: omonimus1

README.md

@@ -95,6 +95,7 @@ Here you will be able to find my HackerRank solutions to many challenghes, using
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+|Find the percentage|[Python](python/find-the-percentage.py)||
 
 | |[Python](python/.py)||
 

python/find-the-percentage.py

@@ -0,0 +1,18 @@
+#  https://www.hackerrank.com/challenges/finding-the-percentage/problem
+if __name__ == '__main__':
+    # Get number of students
+    n = int(input())
+    student_marks = {}
+    for _ in range(n):
+        name, *line = input().split()
+        scores = list(map(float, line))
+        student_marks[name] = scores
+    query_name = input()
+    score_record = []
+    score_record = student_marks[query_name]
+
+    sum_marks = 0
+    for x in score_record:
+        sum_marks += x
+    percentage = "{:.2f}".format(sum_marks/len(score_record))
+    print(percentage)