In [1]:
# Get the key of a minimum value from the following dictionary.

sample_dict = {
  'Physics': 82,
  'Math': 65,
  'history': 75
}
print(min(sample_dict, key=sample_dict.get))

Math
In [3]:
# Write a Python program to check if value 200 exists in the following dictionary.

sample_dict = {'a': 100, 'b': 200, 'c': 300}
if 200 in sample_dict.values():
    print('200 present in a dict')

200 present in a dict
In [4]:
#Merge two Python dictionaries into one.

dict1 = {'Ten': 10, 'Twenty': 20, 'Thirty': 30}
dict2 = {'Thirty': 30, 'Fourty': 40, 'Fifty': 50}

dict3 = {**dict1, **dict2}

print(dict3)

{'Ten': 10, 'Twenty': 20, 'Thirty': 30, 'Fourty': 40, 'Fifty': 50}