# Python: Compute the sum of the three lowest positive numbers from a given list of numbers

## Python Basic - 1: Exercise-89 with Solution

Write a Python program to compute the sum of the three lowest positive numbers from a given list of numbers.

**Sample Solution**:

**Python Code:**

```
def sum_three_smallest_nums(lst):
return sum(sorted([x for x in lst if x > 0])[:3])
nums = [10, 20, 30, 40, 50, 60, 7]
print("Original list of numbers: ",nums)
print("Sum of the three lowest positive numbers of the said array: ",sum_three_smallest_nums(nums))
nums = [1, 2, 3, 4, 5]
print("\nOriginal list of numbers: ",nums)
print("Sum of the three lowest positive numbers of the said array: ",sum_three_smallest_nums(nums))
nums = [0, 1, 2, 3, 4, 5]
print("\nOriginal list of numbers: ",nums)
print("Sum of the three lowest positive numbers of the said array: ",sum_three_smallest_nums(nums))
```

Sample Output:

Original list of numbers: [10, 20, 30, 40, 50, 60, 7] Sum of the three lowest positive numbers of the said array: 37 Original list of numbers: [1, 2, 3, 4, 5] Sum of the three lowest positive numbers of the said array: 6 Original list of numbers: [0, 1, 2, 3, 4, 5] Sum of the three lowest positive numbers of the said array: 6

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