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Selina Textbook Solutions: Ratio and Proportion

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 Page 1


Ratio and Proportion (Including Properties & Uses) 
 
 
Question 1. 
 
Solution: 
 
 
Question 2. 
If x: y = 4: 7, find the value of (3x + 2y): (5x + y). 
 
Solution: 
Page 2


Ratio and Proportion (Including Properties & Uses) 
 
 
Question 1. 
 
Solution: 
 
 
Question 2. 
If x: y = 4: 7, find the value of (3x + 2y): (5x + y). 
 
Solution: 
 
Question 3. 
 
Solution: 
 
Page 3


Ratio and Proportion (Including Properties & Uses) 
 
 
Question 1. 
 
Solution: 
 
 
Question 2. 
If x: y = 4: 7, find the value of (3x + 2y): (5x + y). 
 
Solution: 
 
Question 3. 
 
Solution: 
 
 
Question 4. 
If (a – b): (a + b) = 1: 11, find the ratio (5a + 4b + 15): (5a – 4b + 3). 
 
Solution: 
 
 
Question 5. 
 
Page 4


Ratio and Proportion (Including Properties & Uses) 
 
 
Question 1. 
 
Solution: 
 
 
Question 2. 
If x: y = 4: 7, find the value of (3x + 2y): (5x + y). 
 
Solution: 
 
Question 3. 
 
Solution: 
 
 
Question 4. 
If (a – b): (a + b) = 1: 11, find the ratio (5a + 4b + 15): (5a – 4b + 3). 
 
Solution: 
 
 
Question 5. 
 
Solution: 
 
Question 6. 
 
 
Solution: 
 
Page 5


Ratio and Proportion (Including Properties & Uses) 
 
 
Question 1. 
 
Solution: 
 
 
Question 2. 
If x: y = 4: 7, find the value of (3x + 2y): (5x + y). 
 
Solution: 
 
Question 3. 
 
Solution: 
 
 
Question 4. 
If (a – b): (a + b) = 1: 11, find the ratio (5a + 4b + 15): (5a – 4b + 3). 
 
Solution: 
 
 
Question 5. 
 
Solution: 
 
Question 6. 
 
 
Solution: 
 
 
 
Question 7. 
 
 
Solution: 
 
 
 
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