Selina Concise Class 10 Math Chapter 7 Ratio and Proportion Solutions Exercise 7 (C) (Q1) If a:b = c:d, prove that: (i) 5a + 7b : 5a – 7b = 5c + 7d : 5c – 7d (ii) (9a + 13b) (9c – 13d) = (9c + 13d (9a – 13b) (iii) xa […]
Tag: ICSE Ratio and Proportion Class 10 Solution
Selina Concise Class 10 Math Chapter 7 Ratio and Proportion Exercise 7B Solutions (Including Properties and Uses)
Selina Concise Class 10 Math Chapter 7 Ratio and Proportion Solutions Exercise – 7(B) (Q1) Find the fourth proportional to (i) 1.5, 4.5 and 3.5 (ii) 3a, 6a2 and 2ab2 = Solution: (i) Let us assume that the fourth proportional to 1.5, 4.5 and be x ∴ 1.5/4.5 = 3.5/x x = 3.5 […]
Selina Concise Class 10 Math Chapter 7 Ratio and Proportion Exercise 7A Solutions (Including Properties and Uses)
Selina Concise Class 10 Math Chapter 7 Ratio and Proportion Solutions Exercise – 7 (A) (Q1) If a:b = 5:3, find; 5a – 3b/5a + 3b = Solution: Given that a:b = 5:3 Means, a/b = 5/3 = a = 5/3 b. Find 5a – 3b/5a + 3b = 5a – 3b/5a + […]