solution.py

# Story
# Jumbo Juice makes a fresh juice out of fruits of your choice.
# Jumbo Juice charges $5 for regular fruits and $7 for special ones.
# Regular fruits are Banana, Orange, Apple, Lemon and Grapes.
# Special ones are Avocado, Strawberry and Mango.
# Others fruits that are not listed are also available upon request.
# Those extra special fruits cost $9 per each.
# There is no limit on how many fruits she/he picks.
# The price of a cup of juice is the mean of price of chosen fruits.
# In case of decimal number (ex. $5.99), output should be the nearest integer
# (use the standard rounding function of your language of choice).

# Input
# The function will receive an array of strings, each with the name of a fruit.
# The recognition of names should be case insensitive. There is no case of an enmpty array input.

# Example
# ['Mango', 'Banana', 'Avocado'] //the price of this juice bottle is (7+5+7)/3 = $6($6.333333...)


def mix_fruit(arr):
    fruits = {'banana': 5, 'orange': 5, 'apple': 5, 'lemon': 5, 'grapes': 5, 'avocado': 7, 'strawberry': 7, 'mango': 7}

    return round(sum(fruits.get(i.lower(), 9) for i in arr) / len(arr))