diff --git a/README.md b/README.md
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 # OpenBootCampPython
 Repository to store Python boot camp.
+
+* Exercise 3: Escribe un programa en la consola de python que pida al usuario su peso (en kg) y estatura (en metros), calcule el índice de masa corporal y lo almacene en una variable, e imprima por pantalla la frase Tu índice de masa corporal es donde es el índice de masa corporal calculado redondeado con dos decimales.
+
+  * Screenshot in folder "src/ExerciseThree/imc.png" on branch ExerciseTwo.
diff --git a/requirements.txt b/requirements.txt
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+-i https://pypi.org/simple
+setuptools==65.5.0 ; python_version >= '3.7'
+wheel==0.38.0
diff --git a/src/exercisethree/imc.png b/src/exercisethree/imc.png
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diff --git a/src/exercisethree/imc.py b/src/exercisethree/imc.py
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+def imc(p=0, e=0):
+    """Script that calculate the body mass index rounded to two decimal places
+    :param p: user weigth
+    :type p: float
+    :param e: user height float
+    :type e: float
+    :return: body mass index rounded to two decimal places
+    :rtype: float
+    """
+    return round(p/(e*e), 2)
diff --git a/src/main.py b/src/main.py
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+from src.exercisethree.imc import imc
+
+
+def main():
+    """Main script for exercise three
+    :return: None
+    :rtype: NoneType
+    """
+    p = float(input('Indique su peso (kg): '))
+    e = float(input('Indique su estatura (m): '))
+    print("Tu indice de masa corporal es de " + str(imc(p, e)))
+
+
+if __name__ == '__main__':
+    main()