9th Standard Algebra Practice Set 4.3 Lecture 1 Ratio and Proportion | Class 9th Maths-1

This Video explains Practice Set 4.3 Class 9 of Chapter 4 Ratio and Proportion of Standard 9 for Geometry Maharashtra State Board.

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Following questions of Maharashtra State Board Practice Set 4.3 Class 9 of Chapter 4 Ratio and Proportion of Standard 9 have been explained in the video:

Ratio and Proportion Practice Set 4.3 Question 1.
If 𝑎/𝑏 = 7/3, then find the values of the following ratios.

i) 5a +3b / 5a - 3b
ii) 2a² + 3b² / 2a² - 3b²
iii) a³ - b³ / b³
iv) 7a + 9b / 7a - 9b

Ratio and Proportion Practice Set 4.3 Question 2.
If 15𝑎² + 4b² / 15𝑎² - 4b² = 47/7, then find the values of the following ratios.

i) a/b
ii) 7a - 3b / 7a + 3b
iii) b² - 2a² / b² + 2a²
iv) b³ - 2a³ / b³ + 2a³

Practice Set 4.3 Question 3.If 3a +7b / 3a - 7b = 4/3, then find the value of 3a² - 7b² / 3a² + 7b²

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