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Question
Find the total bill amount for the data given below:
| Name of the item | Marked Price | Discount | GST |
| Hair dryer | ₹ 2000 | 10% | 28% |
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Solution
Formula for discounted price L.W = `"Marked price" ("M.P") xx ((100 - "d"%))/100`
When d is the discount %
∴ D.P = `"M.P" xx (((100 - "d"%))/100)`
Hair dryer = `"M.P" xx (((100 - "d"%))/100)`
= `2000 xx (((100 - 10))/100)`
= 2000 × 0.9
= ₹ 1,800
For bill amount, we should apply GST on the discounted value of the items.
Formula: Bill amount = `"Discounted price" xx (((100 + "GST"%))/100)`
∴ For Hair drier,
Bill amount = `1800 xx (((100 + 28))/100)`
= 1800 × 1.28
= 2304
∴ Total bill amount of School bag + Stationary + Cosmetics + Hair drier
= 532 + 252 + 1357 + 2304
= ₹ 4,445
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