Answer:
The pseudocode algorithm is as follows:
- Start
 - Input Quantity
 - Input Price
 - Bill = Quantity * Price
 - Discount = 0.10 * Bill
 - Display "Before Discount: "+bill
 - Display "Discount: "+discount
 - Display "After Discount: "+(bill - discount)
 - Stop
 
Step-by-step explanation:
This begins the algorithm
Start
First, get input for quantity
Input Quantity
Then, get input for price
Input Price
Calculate the total bill (before discount)
Bill = Quantity * Price
Calculate discount
Discount = 0.10 * Bill
Print the total bill (before discount)
Display "Before Discount: "+bill
Print the discounted amount
Display "Discount: "+discount
Print the total bill (after discount)
Display "After Discount: "+(bill - discount)
End of algorithm
Stop