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

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Solution

(2x + 1): (3x + 13) is the sub-duplicate ratio of 9: 25
Then the sub-duplicate ratio of 9: 25 = 3: 5
(2x + 1)/ (3x + 13) = 3/5
10x + 5 = 9x + 39
x = 34

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