Answer:
Option B is correct.
Explanation:
Total bill = $48
Tip = 20%
Amount of tip = 20% of 48
Amount =

Amount = 0.2 * 48
Amount = $9.60
Total bill with tip = 48 + 9.60 = $57.60
Dividing by 2 as they are spliting the bill.
Each pays =

Therefore,
Option B is correct.