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I need to by 100 pensfrom 100Rs givenCost of Blue pen: 0.50Cost of Red pen : 5.50cost of Green pen: 9.50 |
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Answer» Given : Cost of Blue pen: 0.50 , Cost of RED pen : 5.50 , cost of Green pen: 9.50 To FIND : buy 100 Pens from 100 Rs Solution: Cost of Blue pen: 0.50 Cost of Red pen : 5.50 cost of Green pen: 9.50 Let say Red Pen = R & Green Pen = G Blue Pen = 100 - G - R 5.5R + 9.5G + (100 - G - R)/2 = 100 => 11R + 19G + 100 - G - R = 200 => 10R + 18G = 100 => 5R + 9G = 50 => 9G = 50 - 5R => 9G = 5(10 - R) G = 5 & R = 1 => Blue Pen = 100 - 5 - 1 = 94 Green Pens = 5 5 * 9.5 = 47.5 Red Pens = 1 1 * 5.5 = 5.5 Blue Pen = 94 94 * 0.5 = 47 TOTAL 100 100 5 Green Pens , 1 red Pen & 10 Blue Pens Learn more: Solve ProblemYou are in the fair, You have to buy some animals ... 1 रुपयात 40 कासव 3 रुपयात 1 मांजर 5 रुपयात 1 वाघ तर ... |
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