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12. Divide a line segment of length 30 cm into three parts whose ratio is 5:7:3. |
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Answer» Length of line segment is 30 cm.Ratio of line segment is 5:7:3.⠀To find:-Length of three parts.⠀Solution:-Here,Length = 30 cmRatio = 5:7:3⠀Let,the FIRST PART be 5x.the second part be 7x.the third part be 3x.⠀According to the question→ 5:7:3 = 30→ 5x + 7x + 3x = 30→ 12x + 3x = 30→ 15x = 30→ x = 30/15 → x = 2⠀Therefore,First part = 5x = 5 × 2 = 10Second part = 7x = 7 × 2 = 14Third part = 3x = 3 × 2 = 6⠀Hence,the length of first part is 10 cm, length of second part is 14 cm and length of third part is 6 cm. |
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