Answer:
1st one: Selling price with VAT is Rs 6,215
2nd one:
i. Bill with 10% service charge is Rs 770.
ii. She paid Rs 870.10
Explanation:
For 1st Question:
Given:
Cost price= Rs 4,400
Profit% =25%=0.25
Selling price with VAT =?
VAT%=13%=0.13
We have
Selling Price = Cost Price +Profit % of Cost Price
Selling Price = Rs 4,400 +0.25* Rs 4,400
Selling Price = Rs 4,400 + Rs 1,100
Selling Price = Rs 5,500
Now
Finding the selling price with VAT:
We have
Selling price with VAT = Selling Price + VAT% of Selling Price
Selling price with VAT = Rs 5,500 + 0.13 * Rs 5,500
Selling price with VAT = Rs 5,500 + Rs 715
Selling price with VAT = Rs 6,215
Therefore, Mrs. Lama sold the cosmetic item for Rs 6,215 with 13% VAT.

For 2nd Question;
Total cost of Mo:Mo plates = 3 plates * Rs 120 per plate = Rs 360
Cost of chicken chilly plate = 1 plate * Rs 220 per plate = Rs 220
Total cost of cold drink bottles = 3 bottles * Rs 40 per bottle = Rs 120
Total bill before service charge = Rs 360 + Rs 220 + Rs 120 = Rs 700
i.
Bill with 10% service charge=?
Service charge=10%=0.10
Let's find the service charge:
Service charge = Service charge% of Rs 700 =0.10* Rs 700 = Rs 70
Now
Total bill with 10% service charge =Total bill before service charge + Service charge
= Rs 700 + Rs 70 = Rs 770
Therefore, Bill with 10% service charge is Rs 770.
ii.
Bill with 10% service charge= Rs 770
VAT%=13%=0.13
bill with 13% VAT=?
Let's find the VAT amount first:
VAT amount= VAT% of Total Cost= 0.13* Rs 770 = Rs 100.10
Now
Amount to pay for the bill with VAT = Total bill with 10% service charge + 13% of Total bill with 10% service charge
Amount to pay = Rs 770 + Rs 100.10 = Rs 870.10
Therefore, Mrs. Kandel paid Rs 870.10 to clear the bill with 13% VAT.
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