Find the value of x, if: (2x + 1) : (3x + 13) is the sub-duplicate ratio of 9 : 25. - Mathematics

Find the value of x, if: (2x + 1) : (3x + 13) is the sub-duplicate ratio of 9 : 25.

Sum

(2x + 1) : (3x + 13) is the sub-duplicate ratio of 9 : 25

Sub-duplicate ratio of 9 : 25 = 3 : 5

`(2x + 1)/(3x + 13) = 3/5`

10x + 5 = 9x + 39

10x – 9x = 39 – 5

x = 34

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Chapter 7: Ratio and Proportion (Including Properties and Uses) - Exercise 7 (D) [Page 102]

Chapter 7 Ratio and Proportion (Including Properties and Uses)
Exercise 7 (D) | Q 5.2 | Page 102

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