problim in ex number 8,9

# Example 8
# Computer the value of a block of stock
shares= 150
price= 3 + 5.0/8.0
value= shares * price
print("value",value)


# Example 9
# Total value of a portfolio made up of two blocks of stock
portfolio = 0
portfolio += 150 * 2 + 1/4.0
portfolio += 75 * 1 + 7/8.0
print("portfolio", portfolio) 
