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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8

Find the total bill amount for the data given below: Name of the item Marked Price Discount GST School bag ₹ 500 5% 12% - Mathematics

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Question

Find the total bill amount for the data given below:

Name of the item Marked Price Discount GST
School bag ₹ 500 5% 12%
Sum
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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)`

School bag = `"M.P" xx (((100 - "d"%))/100)`

= `500 xx ((100 - 5))/100`

= `(500 xx 0.95)/100`

= ₹ 475

For bill amount, we should apply GST on the discounted value of the items.

Formula: Bill amount = `"Discounted price" xx (((100 + "GST"%))/100)`

∴ For School bag.

Bill amount = `475 xx (((100 + 12))/100)`

= 475 × 1.12 = 532%

∴ Total bill amount of School bag + Stationary + Cosmetics + Hair drier

= 532 + 252 + 1357 + 2304

= ₹ 4,445

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Chapter 4: Life Mathematics - Exercise 4.2 [Page 131]

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Samacheer Kalvi Mathematics [English] Class 8 TN Board
Chapter 4 Life Mathematics
Exercise 4.2 | Q 8. (i) | Page 131

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