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MBPP / 599 / Write a function to find sum and average of first n natural numbers.

Problem

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prompt

Write a function to find sum and average of first n natural numbers.

test list

  • assert sum_average(10)==(55, 5.5)
  • assert sum_average(15)==(120, 8.0)
  • assert sum_average(20)==(210, 10.5)

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