February 7, 2026

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Class 10 Selina Maths โ€“ Chapter 1 GST Exercise 1(A) Full Solutions ๐Ÿ’ฏ | Bastronautway | By Grandmaster Bikram Sutradhar ๐Ÿ† Best Teacher Award 2023 Winner

Class 10 Selina Maths โ€“ Chapter 1 GST Exercise 1(A) Full Solutions ๐Ÿ’ฏ | Bastronautway | By Grandmaster Bikram Sutradhar ๐Ÿ† Best Teacher Award 2023 Winner

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Grandmaster Bikram sutradhar Athlete Chapter 12 โ€“ Organic Chemistry ICSE bikram Sutradhar Exercise 12C โ€“ ICSE Class 10 Chemistry Organic Chemistry Solutions | Selina Answers by Bastronautway

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ICSE Class 10 Selina Mathematics Chapter 1: GST Exercise 1(A)

with 100% accurate, step-by-step answers by Bastronautway. Expertly solved by Grandmaster Bikram Sutradhar โ€” ๐Ÿ† Best Teacher Award 2023 Winner & 5 Times World Record Holder. Perfect for exam prep!

โœจ EXERCISE 1(A)

1. Multiple Choice Type ๐Ÿ“

(a) ๐Ÿงพ The marked price of an article is โ‚น1,500 and discount on it is 20%.

Explanation:
20% of โ‚น1,500 = โ‚น300 โžก๏ธ Discounted price = โ‚น1,500 – โ‚น300 = โ‚น1,200
18% GST on โ‚น1,200 = โ‚น216 โžก๏ธ Final price = โ‚น1,200 + โ‚น216 = โ‚น1,416

โœ… Correct option: (ii) โ‚น1,416

Class 10 Selina Maths โ€“ Chapter 1 GST Exercise 1(A) Full Solutions ๐Ÿ’ฏ | Bastronautway | By Grandmaster Bikram Sutradhar ๐Ÿ† Best Teacher Award 2023 Winner
Class 10 Selina Maths โ€“ Chapter 1 GST Exercise 1(A) Full Solutions ๐Ÿ’ฏ | Bastronautway | By Grandmaster Bikram Sutradhar ๐Ÿ† Best Teacher Award 2023 Winner

(b) ๐Ÿ›๏ธ

๐Ÿ“ฆ Articles | ๐Ÿ’ฐ Marked Price | ๐Ÿ’ธ GST Rate
A | โ‚น1,000 | 5%
B | โ‚น2,000 | 12%

Explanation:
GST on A = โ‚น1,000 ร— 5% = โ‚น50
GST on B = โ‚น2,000 ร— 12% = โ‚น240
Total cost = โ‚น1,000 + โ‚น50 + โ‚น2,000 + โ‚น240 = โ‚น3,290

โœ… Correct option: (iii) โ‚น3,290

(c) ๐Ÿš›:

Explanation:
This is an inter-state transaction. In such cases, only IGST is applied, and both SGST and CGST are not charged.

โœ… Correct option: (iii) 0%

(d) ๐ŸŒ

Explanation:
Inter-state GST is collected as IGST only, not divided into CGST or SGST. So, IGST is equal to the full rate.

โœ… Correct option: (iv) IGST = 18%

(e) ๐Ÿงพ The marked price of an article is โ‚น2,000.

Explanation:
Selling price after โ‚น500 discount = โ‚น1,500
12% GST on โ‚น1,500 = โ‚น180
Total payable = โ‚น1,500 + โ‚น180 = โ‚น1,680

โœ… Correct option: (ii) โ‚น1,680

2. ๐Ÿงฎ Transaction within Delhi (Intra-State)

  • MRP = โ‚น12,000
  • Discount% = 30%
  • GST% = 18%

โœ… Discount = โ‚น3,600 (30% of โ‚น12,000)
โœ… Discounted value = โ‚น8,400 (โ‚น12,000 – โ‚น3,600)
โœ… CGST = โ‚น756 (9% of โ‚น8,400)
โœ… SGST = โ‚น756 (9% of โ‚น8,400)
โœ… IGST = โ‚น0 (only for inter-state)
โœ… Amount of bill = โ‚น8,400 + โ‚น756 + โ‚น756 = โ‚น9,912 โœ…

3. ๐Ÿšš Transaction from Delhi to Jaipur (Inter-State)

  • MRP = โ‚น50,000
  • Discount = 20%
  • GST = 28%

โœ… Discount value = โ‚น10,000 (20% of โ‚น50,000)
โœ… Discounted value = โ‚น40,000 (โ‚น50,000 – โ‚น10,000)
โœ… CGST = โ‚น0 (not applicable in inter-state)
โœ… SGST = โ‚น0 (not applicable in inter-state)
โœ… IGST = โ‚น11,200 (28% of โ‚น40,000)
โœ… Amount of bill = โ‚น40,000 + โ‚น11,200 = โ‚น51,200 โœ…

Ganita Prakash Class 6 Solutions Chapter 1: Patterns in Mathematics เค—เคฃเคฟเคค เคฎเฅ‡เค‚ เคชเฅˆเคŸเคฐเฅเคจ English & Hindi By Grandmaster Bikram Sutradhar
Ganita Prakash Class 6 Solutions Chapter 1: Patterns in Mathematics เค—เคฃเคฟเคค เคฎเฅ‡เค‚ เคชเฅˆเคŸเคฐเฅเคจ English & Hindi By Grandmaster Bikram Sutradhar

4. ๐Ÿง‘๐Ÿ”ง Mechanic in Delhi โ€“ GST on Repair Charges

๐Ÿ“Š Total money received including GST = โ‚น4,543 + โ‚น4,425 + โ‚น3,965 + โ‚น6,797 + โ‚น2,478 = โœ… โ‚น22,208 โœ…

5. ๐Ÿ›’ Intra-State Goods Transaction โ€“ GST = 5%

๐Ÿงพ Total Discounted Value = โ‚น14,580 + โ‚น27,648 + โ‚น12,600 + โ‚น6,912 = โ‚น61,740
๐Ÿงฎ GST @5% = โ‚น3,087
โœ… Amount of bill = โ‚น61,740 + โ‚น3,087 = โœ… โ‚น64,827 โœ…

Question 5: ๐Ÿ›’

  • Total Discounted Value = โ‚น14,580 + โ‚น27,648 + โ‚น12,600 + โ‚น6,912 = โ‚น61,740
  • Total GST (5%) = โ‚น61,740 ร— 5% = โ‚น3,087
  • Total Bill Amount = โ‚น61,740 + โ‚น3,087 = โ‚น64,827

โœ… Amount of bill = โ‚น64,827

๐Ÿงช๐ŸŒ Cbse class 6 Science solutions Chapter 1: The Wonderful World of Scienceย  Hindi & English medium ย ๐Ÿ“˜ By Grandmaster Bikram Sutradhar
๐Ÿงช๐ŸŒ Cbse class 6 Science solutions Chapter 1: The Wonderful World of Science  Hindi & English medium  ๐Ÿ“˜ By Grandmaster Bikram Sutradhar

Question 6: ๐Ÿš›

Item No.QuantityMRP per item (โ‚น)Discount %Total MRP (โ‚น)Discount Amount (โ‚น)Discounted Value (โ‚น)IGST (18%) (โ‚น)Final Amount (โ‚น)
135โ‚น42010%โ‚น14,700โ‚น1,470โ‚น13,230โ‚น2,383.40โ‚น15,613.40
247โ‚น60010%โ‚น28,200โ‚น2,820โ‚น25,380โ‚น4,572.40โ‚น29,952.40
320โ‚น35020%โ‚น7,000โ‚น1,400โ‚น5,600โ‚น1,008โ‚น6,608
  • Total Discounted Value = โ‚น13,230 + โ‚น25,380 + โ‚น5,600 = โ‚น44,210
  • Total IGST (18%) = โ‚น44,210 ร— 18% = โ‚น7,957.80
  • Total Bill Amount = โ‚น44,210 + โ‚น7,957.80 = โ‚น52,167.80

โœ… Amount of bill = โ‚น52,167.80

Question 7: ๐Ÿ›๏ธ Intra-state Transaction of Goods/Services

Item No.MRP (โ‚น)Discount %Discounted Value (โ‚น)CGST %CGST Amount (โ‚น)SGST %SGST Amount (โ‚น)Total Amount (โ‚น)
1โ‚น12,00030%โ‚น8,4006%โ‚น5046%โ‚น504โ‚น9,408
2โ‚น15,00020%โ‚น12,0009%โ‚น1,0809%โ‚น1,080โ‚น14,160
3โ‚น9,50030%โ‚น6,65014%โ‚น93114%โ‚น931โ‚น8,512
4โ‚น18,00040%โ‚น10,8002.5%โ‚น2702.5%โ‚น270โ‚น11,340
  • Total Bill Amount = โ‚น9,408 + โ‚น14,160 + โ‚น8,512 + โ‚น11,340 = โ‚น43,420

โœ… Amount of bill = โ‚น43,420

Work and Energy
Work and Energy

Question 8: ๐Ÿ”„ Inter-state Transaction of Goods/Services

Item No.MRP (โ‚น)Discount %Discounted Value (โ‚น)IGST %IGST Amount (โ‚น)Total Amount (โ‚น)
1โ‚น12,00030%โ‚น8,40012%โ‚น1,008โ‚น9,408
2โ‚น15,00020%โ‚น12,00018%โ‚น2,160โ‚น14,160
3โ‚น9,50030%โ‚น6,65028%โ‚น1,862โ‚น8,512
4โ‚น18,00040%โ‚น10,8005%โ‚น540โ‚น11,340
  • Total Bill Amount = โ‚น9,408 + โ‚น14,160 + โ‚น8,512 + โ‚น11,340 = โ‚น43,420

โœ… Amount of bill = โ‚น43,420

9. ๐Ÿ›’

ItemsQuantityRate per Items (โ‚น)Total Cost (โ‚น)DiscountDiscount Amount (โ‚น)Discounted Value (โ‚น)IGST (18%) (โ‚น)Total Amount (โ‚น)
Item 1101801,8000%01,8003242,124
Item 2202605,20020%1,0404,160748.804,908.80
Item 3303109,3000%09,3001,67410,974
Item 4201753,50030%1,0502,4504412,891

Total Amount = โ‚น2,124 + โ‚น4,908.80 + โ‚น10,974 + โ‚น2,891 = โ‚น20,897.80
โœ… Total amount of bill = โ‚น20,897.80


10.

ServiceNumber of ServicesCost per Service (โ‚น)Total Cost (โ‚น)IGST (%)IGST Amount (โ‚น)Total Amount (โ‚น)
Service 186805,4405%2725,712
Service 2123203,84012%460.804,300.80
Service 3102602,60018%4683,068
Service 4164206,72012%806.407,526.40

Total Amount = โ‚น5,712 + โ‚น4,300.80 + โ‚น3,068 + โ‚น7,526.40 = โ‚น20,607.20
โœ… Amount of bill = โ‚น20,607.20


EXERCISE 1(A)

9. ๐Ÿ›’

Formula: Total Cost = Quantity ร— Rate per item

  • Formula: Discount Amount = Total Cost ร— (Discount% / 100)
  • Formula: Discounted Value = Total Cost – Discount Amount
  • Formula: IGST Amount = Discounted Value ร— (2 ร— SGST%) (since itโ€™s an inter-state transaction, IGST = 2 ร— SGST%)
  • Formula: Total Amount = Discounted Value + IGST Amount

Item 1:

  • Quantity = 10, Rate = โ‚น180
  • Total Cost = 10 ร— โ‚น180 = โ‚น1,800
  • Discount = 0%, so Discount Amount = โ‚น1,800 ร— 0% = โ‚น0
  • IGST (18%) = โ‚น1,800 ร— 18% = โ‚น324
  • Total Amount = โ‚น1,800 + โ‚น324 = โ‚น2,124

Item 2:

  • Quantity = 20, Rate = โ‚น260
  • Total Cost = 20 ร— โ‚น260 = โ‚น5,200
  • Discount = 20%, so Discount Amount = โ‚น5,200 ร— 20% = โ‚น1,040
  • Discounted Value = โ‚น5,200 – โ‚น1,040 = โ‚น4,160
  • IGST (18%) = โ‚น4,160 ร— 18% = โ‚น748.80
  • Total Amount = โ‚น4,160 + โ‚น748.80 = โ‚น4,908.80

Item 3:

  • Quantity = 30, Rate = โ‚น310
  • Total Cost = 30 ร— โ‚น310 = โ‚น9,300
  • Discount = 0%, so Discount Amount = โ‚น9,300 ร— 0% = โ‚น0
  • IGST (18%) = โ‚น9,300 ร— 18% = โ‚น1,674
  • Total Amount = โ‚น9,300 + โ‚น1,674 = โ‚น10,974

Item 4:

  • Quantity = 20, Rate = โ‚น175
  • Total Cost = 20 ร— โ‚น175 = โ‚น3,500
  • Discount = 30%, so Discount Amount = โ‚น3,500 ร— 30% = โ‚น1,050
  • Discounted Value = โ‚น3,500 – โ‚น1,050 = โ‚น2,450
  • IGST (18%) = โ‚น2,450 ร— 18% = โ‚น441
  • Total Amount = โ‚น2,450 + โ‚น441 = โ‚น2,891

Total Amount = โ‚น2,124 + โ‚น4,908.80 + โ‚น10,974 + โ‚น2,891 = โ‚น20,897.80
โœ… Total amount of bill = โ‚น20,897.80


10. ๐Ÿงพ

  • Formula: Total Cost = Number of services ร— Cost per service
  • Formula: IGST Amount = Total Cost ร— GST% (since inter-state, IGST applies)
  • Formula: Total Amount = Total Cost + IGST Amount

Service 1:

  • Number of services = 8, Cost per service = โ‚น680
  • Total Cost = 8 ร— โ‚น680 = โ‚น5,440
  • IGST (5%) = โ‚น5,440 ร— 5% = โ‚น272
  • Total Amount = โ‚น5,440 + โ‚น272 = โ‚น5,712

Service 2:

  • Number of services = 12, Cost per service = โ‚น320
  • Total Cost = 12 ร— โ‚น320 = โ‚น3,840
  • IGST (12%) = โ‚น3,840 ร— 12% = โ‚น460.80
  • Total Amount = โ‚น3,840 + โ‚น460.80 = โ‚น4,300.80

Service 3:

  • Number of services = 10, Cost per service = โ‚น260
  • Total Cost = 10 ร— โ‚น260 = โ‚น2,600
  • IGST (18%) = โ‚น2,600 ร— 18% = โ‚น468
  • Total Amount = โ‚น2,600 + โ‚น468 = โ‚น3,068

Service 4:

  • Number of services = 16, Cost per service = โ‚น420
  • Total Cost = 16 ร— โ‚น420 = โ‚น6,720
  • IGST (12%) = โ‚น6,720 ร— 12% = โ‚น806.40
  • Total Amount = โ‚น6,720 + โ‚น806.40 = โ‚น7,526.40

Total Amount = โ‚น5,712 + โ‚น4,300.80 + โ‚น3,068 + โ‚น7,526.40 = โ‚น20,607.20
โœ… Amount of bill = โ‚น20,607.20


11. ๐Ÿ“ฑ

  • Formula: GST Amount = Cost ร— GST%
  • Formula: Total Amount = Cost + GST Amount

Cost = โ‚น750
GST (18%) = โ‚น750 ร— 18% = โ‚น135
Total Amount = โ‚น750 + โ‚น135 = โ‚น885
โœ… Amount of bill = โ‚น885


12. ๐Ÿฅ

  • Formula: Total GST = 2 ร— SGST (since GST = CGST + SGST)
  • Formula: Premium = (Total Amount – Total GST) / (1 + GST%)

SGST = โ‚น900
Total GST = 2 ร— โ‚น900 = โ‚น1,800
GST% = 18%
Since SGST is 9% of the premium,
Premium ร— 9% = โ‚น900
Premium = โ‚น900 / 0.09 = โ‚น10,000
Total Amount = 10,000 + 1,800 = โ‚น11,800
โœ… Total annual premium = โ‚น11,800


13. ๐Ÿจ

  • Formula: Total Cost will be = (Room Cost ร— Days) + (Extra Bed Cost ร— Days)
  • Formula: GST Amount = Total Cost ร— GST%

Room Cost will be = 2 ร— โ‚น5,000 = โ‚น10,000
Extra Bed Cost will be  = 2 ร— โ‚น1,000 = โ‚น2,000
Total Cost = โ‚น10,000 + โ‚น2,000 = โ‚น12,000
GST (28%) = โ‚น12,000 ร— 28% = โ‚น3,360
โœ… GST charged = โ‚น3,360

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Selina Mathematics Chapter 1: GST Exercise 1(A) Class 10 Selina Mathematics Chapter 1: GST

ICSE Class 10 Selina Mathematics

ICSE CLASS 10 ICSE CLASS 10 BIOLOGY BASTRONAUTWAY SirBikramSutradhar Bikram Sutradhar GrandMaster Bikram Sutradhar selina biology solutions ICSE Biology Selina Solution

๐Ÿ“š Class 9 Science โ€“ Complete Table of Contents (เคตเคฟเคทเคฏ-เคธเฅ‚เคšเฅ€)

CBSE | NCERT Curriculum | Bilingual (English + Hindi)
By Grandmaster Bikram Sutradhar | SirBikramSutradhar | BASTRONAUTWAY

๐Ÿ”ฌ PHYSICS (เคญเฅŒเคคเคฟเค• เคตเคฟเคœเฅเคžเคพเคจ)

๐Ÿ”ขChapter Title (English)เค…เคงเฅเคฏเคพเคฏ เค•เคพ เคจเคพเคฎ (เคนเคฟเค‚เคฆเฅ€)Page No.
1๏ธโƒฃMotionเค—เคคเคฟ
2๏ธโƒฃForce and Laws of Motionเคฌเคฒ เคคเคฅเคพ เค—เคคเคฟ เค•เฅ‡ เคจเคฟเคฏเคฎ
3๏ธโƒฃGravitationเค—เฅเคฐเฅเคคเฅเคตเคพเค•เคฐเฅเคทเคฃ
4๏ธโƒฃWork and Energyเค•เคพเคฐเฅเคฏ เคคเคฅเคพ เคŠเคฐเฅเคœเคพ
5๏ธโƒฃSoundเคงเฅเคตเคจเคฟ

๐Ÿงช CHEMISTRY (เคฐเคธเคพเคฏเคจ เคตเคฟเคœเฅเคžเคพเคจ)

๐Ÿ”ขChapter Title (English)เค…เคงเฅเคฏเคพเคฏ เค•เคพ เคจเคพเคฎ (เคนเคฟเค‚เคฆเฅ€)Page No.
1๏ธโƒฃMatter in Our Surroundingsเคนเคฎเคพเคฐเฅ‡ เค†เคธ-เคชเคพเคธ เค•เฅ‡ เคชเคฆเคพเคฐเฅเคฅ
2๏ธโƒฃIs Matter Around Us Pure?เค•เฅเคฏเคพ เคนเคฎเคพเคฐเฅ‡ เค†เคธ-เคชเคพเคธ เค•เฅ‡ เคชเคฆเคพเคฐเฅเคฅ เคถเฅเคฆเฅเคง เคนเฅˆเค‚?
3๏ธโƒฃAtoms and Moleculesเคชเคฐเคฎเคพเคฃเฅ เคเคตเค‚ เค…เคฃเฅ
4๏ธโƒฃStructure of the Atomเคชเคฐเคฎเคพเคฃเฅ เค•เฅ€ เคธเค‚เคฐเคšเคจเคพ

๐Ÿงฌ BIOLOGY (เคœเฅ€เคต เคตเคฟเคœเฅเคžเคพเคจ)

๐Ÿ”ขChapter Title (English)เค…เคงเฅเคฏเคพเคฏ เค•เคพ เคจเคพเคฎ (เคนเคฟเค‚เคฆเฅ€)Page No.
1๏ธโƒฃThe Fundamental Unit of Lifeเคœเฅ€เคตเคจ เค•เฅ€ เคฎเฅŒเคฒเคฟเค• เค‡เค•เคพเคˆ
2๏ธโƒฃTissuesเคŠเคคเค•
3๏ธโƒฃImprovement in Food Resourcesเคงเคจเฅ‹เค‚ เคฎเฅ‡เค‚ เคธเฅเคงเคพเคฐ

๐Ÿ“˜ ADDITIONAL SECTIONS (เค…เคคเคฟเคฐเคฟเค•เฅเคค เค…เคจเฅเคญเคพเค—)

๐Ÿ“– SectionTitle (English + Hindi)
๐Ÿ”นGlossary / เคชเคพเคฐเคฟเคญเคพเคทเคฟเค• เคถเคฌเฅเคฆเคพเคตเคฒเฅ€
๐Ÿ”นAnswer Keys / เค‰เคคเฅเคคเคฐเคฎเคพเคฒเคพ
๐Ÿ”นSummary / เคธเคพเคฐเคพเค‚เคถ
๐Ÿ”นImportant Diagrams / เคฎเคนเคคเฅเคตเคชเฅ‚เคฐเฅเคฃ เคšเคฟเคคเฅเคฐ
๐Ÿ”นNCERT Exercises / เคเคจเคธเฅ€เคˆเค†เคฐเคŸเฅ€ เค…เคญเฅเคฏเคพเคธ
๐Ÿ”นSample Papers & MCQs / เคฎเฅ‰เคกเคฒ เคชเฅ‡เคชเคฐ เคต เคตเคธเฅเคคเฅเคจเคฟเคทเฅเค  เคชเฅเคฐเคถเฅเคจ

โœ… All content follows the official NCERT Class 9 Science textbook structure. Each chapter will include explanations, bilingual notes, definitions, diagrams, MCQs, FAQs, and practice exercises under the BASTRONAUTWAY learning system.

class 10 Maths ncert solution.

CBSE Class 10 Mathematics (2025) NCERT Syllabus:

CBSE Class 10 Mathematics NCERT Syllabus (2025) โ€“ Chapter-Wise List

CBSE Class 10 Mathematics NCERT Syllabus (2025) โ€“ Chapter-Wise List

chapter 1. Real Numbers

chapter 2. Polynomials

chapter 3.  Linear Equations

chapter 4. Quadratic Equations

chapter 5. Arithmetic Progressions

chapter 6. Triangles

chapter 7. Coordinate Geometry

chapter 8. Introduction to Trigonometry

chapter 9. Some Applications of Trigonometry

chapter 10. Circles

chapter 11. Areas Related to Circles

chapter 12. Surface Areas and Volumes

chapter 13. Statistics

chapter 14. Probability

CBSE Class 10 Science (2025) NCERT Syllabus:

CBSE Class 10 Science NCERT Syllabus (2025) โ€“ Chapter-Wise List

CBSE Class 10 Science NCERT Syllabus (2025) โ€“ Chapter-Wise List

Chapter 1 Chemical Reactions and Equations 
Chapter 2 Acids, Bases and Salts 
Chapter 3 Metals and Non-metals 
Chapter 4 Carbon and its Compounds 
Chapter 5 Life Processes 
Chapter 6 Control and Coordination 
Chapter 7 How do Organisms Reproduce? 
Chapter 8 Heredity 
Chapter 9 Light โ€“ Reflection and Refraction 
Chapter 10 The Human Eye and the Colourful World 
Chapter 11 Electricity 
Chapter 12 Magnetic Effects of Electric Current 
Chapter 13 Our Environment

๐Ÿ“– Chapter 12 โ€“ Organic Chemistry (Selina Textbook)

Table of Contents:

๐Ÿ“Œ Exercise 12 MISCELLANEOUS โ€“ Focus Areas:

  • ๐Ÿงฌ Consolidated practice from the entire Organic Chemistry chapter
  • ๐Ÿงช Application-based questions covering alkanes, alkenes, alkynes, alcohols, and carboxylic acids
  • ๐Ÿงพ Writing structural formulas and chemical equations
  • ๐Ÿ’ก Distinguishing reactions, isomer identification, and conversions
  • ๐Ÿ“˜ Full-syllabus revision to boost conceptual clarity and board exam readiness

Each question in this section is designed to:

  • โœ… Strengthen cross-topic understanding
  • ๐Ÿ“ Prepare students for application-based and reasoning-based questions
  • ๐Ÿง  Improve problem-solving speed and exam performance

 class 5

๐Ÿ“š Class 9 Science โ€“ Complete Table of Contents (เคตเคฟเคทเคฏ-เคธเฅ‚เคšเฅ€)

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