{"id":4057,"date":"2020-09-09T05:56:54","date_gmt":"2020-09-09T00:26:54","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=4057"},"modified":"2021-07-02T15:03:37","modified_gmt":"2021-07-02T09:33:37","slug":"kseeb-solutions-class-8-maths-chapter-9-ex-9-2","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/kseeb-solutions-class-8-maths-chapter-9-ex-9-2\/","title":{"rendered":"KSEEB Solutions for Class 8 Maths Chapter 9 Commercial Arithmetic Ex 9.2"},"content":{"rendered":"

Students can Download Maths Chapter 9 Commercial Arithmetic Ex 9.2 Questions and Answers, Notes Pdf, KSEEB Solutions for Class 8 Maths<\/a> helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.<\/p>\n

Karnataka Board Class 8 Maths Chapter 9 Commercial Arithmetic Ex 9.2<\/h2>\n

Question 1.
\nSonu bought a bicycle for Rs. 3750 and spent Rs. 250 on its repairs. He sold it for Rs. 4400. Find his loss or profit percentage.
\nAnswer:
\nC.P = 3750 + 250 = Rs. 4000 S P = Rs. 4400
\nS.P > C.P
\n\u2234 S.P \u2013 C.P = 4400 \u2013 4000 = Rs. 400
\nProtit percent =\u00a0\"\\frac\u00a0\u00d7 100
\n=\u00a0\"\\frac\u00a0\u00d7 100 = 10
\nProfit percent = 10%<\/p>\n

Question 2.
\nA shop keeper purchases an article for Rs. 3500 and pays the transport charge of Rs. 100. He incurred a loss of 12% in selling this. Find selling price of the article.
\nAnswer:
\nC.P = 3500 + 100 = Rs. 3600
\nLoss percent = 12%
\n\"KSEEB
\nS.P = Rs.3168.<\/p>\n

Question 3.
\nBy selling a watch for Rs. 720, Ravi loses 10%. At what price should he sell it, in order to gain 15% .
\nAnswer:
\nS.P = Rs. 720,
\nloss percent = 10% C.P = ?
\n\\(\\begin{aligned} \\mathrm{CP} &=\\frac{100}{(100-\\text { Loss percent })} \\times \\mathrm{SP} \\\\ &=\\frac{100}{(100-10)} \\times 720=\\frac{100}{90} \\times 720 \\end{aligned}\\)
\nC.P = RS. 800
\ngain percent = 15 %
\nS.P = ?
\n\\(\\begin{aligned} \\mathrm{S.P} &=\\frac{(100+\\mathrm{gain} \\%)}{100} \\times \\mathrm{C.P} \\\\ &=\\frac{100+15}{100} \\times 800=\\frac{115}{100} \\times 800 \\end{aligned}\\)
\nS.P = Rs. 920
\nHe should sell it for Rs. 920 to gain a 15% profit.<\/p>\n

Question 4.
\nHari bought two fans for Rs. 2400 each. He sold one at a loss of 10% and the other at a profit of 15%. Find the selling price of each fan and also the total profit or loss.
\nAnswer:
\nC.P = Rs. 2400, Loss% = 10%
\nS.P = ?
\n\"KSEEB
\nS.P = Rs. 2160
\n\u2234 When the loss percent is 10% S.P. is Rs. 2160
\nC.P = Rs. 2400
\nprofit percent = 15%
\nS.P = ?
\n\\(\\begin{aligned} \\mathrm{S.P} &=\\frac{(100+\\text { Profit } \\%)}{100} \\times \\mathrm{C.P} \\\\ &=\\frac{100+15}{100} \\times 2400=\\frac{115}{100} \\times 2400 \\end{aligned}\\)
\nS.P. = Rs. 2760.
\nWhen the profit percent is 15%, the S.P. is Rs. 2760.
\nTotal C.P. of two fans is 2400 + 2400 = Rs. 4800.
\nTotal S.P. of two fans is 2160 + 2760 = Rs. 4920.
\nTotal SP > Total C.P
\n\u2234 Total profit = Total S.P – Total C.P = 4920-4800 Profit = Rs. 120.<\/p>\n

Question 5.
\nA storekeeper sells a book at a 15% gain. Had he sold it for Rs. 18 more. He would have gained 18%. Find the cost price of the book.
\nAnswer:
\nLet the C.P be Rs. x
\ngain % = 15%
\n\"KSEEB
\nHad he sold it for Rs. 18 more the new S.P.
\nwould be Rs. \\(\\frac{115 x}{100}\\) . This is equal to S.P
\nWhen the gain percent is 18%
\nS.P when gain percent is 18% is
\n\"KSEEB
\n118 x – 115 x = 1800
\n3 x = 1800
\nx = \\(\\frac { 1800 }{ 3 }\\)
\nx = 600
\n\u2234 Cost price = Rs.600.<\/p>\n

Question 6.
\nThe cost price of 12 pens is equal to the selling price of 10 pens. Find the profit percentage.
\nAnswer:
\nLet the C.P of one pen be Rs. 1
\n\u2234 C.P of 12 pens = Rs. 12
\nGiven S.P. of 10 pens = C.P. of 12 pens.
\nS.P. of 10 pens = Rs. 12 C.P of 10 pens = Rs. 10
\n\u2234 S.P > C.P So there is gain
\nGain = S.P – C.P= 12 – 10 = 2
\nGain percent = \\(\\frac { Gain }{ C.P }\\) \u00d7 100
\n= \\(\\frac { 2 }{ 10 }\\) \u00d7 100 = 20 %
\nGain percent = 20%<\/p>\n","protected":false},"excerpt":{"rendered":"

Students can Download Maths Chapter 9 Commercial Arithmetic Ex 9.2 Questions and Answers, Notes Pdf, KSEEB Solutions for Class 8 Maths helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations. Karnataka Board Class 8 Maths Chapter 9 Commercial Arithmetic Ex 9.2 Question 1. Sonu bought a bicycle …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/4057"}],"collection":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/comments?post=4057"}],"version-history":[{"count":0,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/4057\/revisions"}],"wp:attachment":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/media?parent=4057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/categories?post=4057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/tags?post=4057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}