Answer:
20 fewer Euros.
Step-by-step explanation:
He has 400 pounds. He wants to change this to Euros.
Condition on Friday
1 pound = 1.25 Euros
400 pounds= x Euros
Set up a proportion
1/400 = 1.25/x Cross multiply
x = 400 * 1.25 Combine like factors.
x = 500 Euros
Condition on Monday
1 pound = 1.20 Euros.
400 pounds = x
1/400 = 1.20 / x Cross multiply
x = 1.20 * 400
x = 480 Euros
Difference between Friday and Monday
Difference between Friday and Monday = 500 - 480 = 20
He lost 20 Euros in the exchange.