From d719078b7225b995dbb6128b2b927e6db8c06f1f Mon Sep 17 00:00:00 2001
From: Davide Grilli <davide.grilli@outlook.com>
Date: Wed, 8 Apr 2026 19:23:54 +0200
Subject: [PATCH] aggiunge esercizio 27

---
 lab27.py | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 lab27.py

diff --git a/lab27.py b/lab27.py
new file mode 100644
index 0000000..9506a2c
--- /dev/null
+++ b/lab27.py
@@ -0,0 +1,41 @@
+# conversioni
+
+# 1 miglio = 1609.344 metri
+# 1 gallone = 3.785411784 litri
+
+
+def liters_100km_to_miles_gallon(litres):
+    """converte l/100km in miglia per gallone"""
+    if litres < 0:
+        return None
+
+    gallons_k = litres / 3.785411784 # per 100 km
+
+    gallons_m = gallons_k / 100 # per 1 km
+
+    gallons_m = gallons_m * 1.609344 # per 1 mi
+
+    gallons = gallons_m ** (-1)
+
+    return gallons
+
+def miles_gallon_to_liters_100km(miles):
+    """converte miglia per gallone in l/100km"""
+
+    chilometers = miles * 1.609344 # con un gallone
+
+    chilometers_l = chilometers / 3.785411784 # con un litro
+
+    chilometers_100 = chilometers_l / 100 # 100 km per L
+
+    liters_100 = chilometers_100 ** (-1)
+
+    return liters_100
+
+print(liters_100km_to_miles_gallon(3.9))
+print(liters_100km_to_miles_gallon(7.5))
+print(liters_100km_to_miles_gallon(10.))
+print(miles_gallon_to_liters_100km(60.3))
+print(miles_gallon_to_liters_100km(31.4))
+print(miles_gallon_to_liters_100km(23.5))
+