Physical store price = online store price × 1.2
=4.8× 1.2
=5.76 yuan/kg
You have to buy more money in a physical store than in an online shopping store = physical store price-online shopping store price
=5.76-4.8
=0.96 yuan
A: Buying in a physical store is 0.96 yuan/kg more expensive than buying in an online store.