#### Question

Find the ratio compounded of the duplicate ratio of 5: 6, the reciprocal ratio of 25: 42 and the sub-duplicate ratio of 36: 49.

#### Solution

Duplicate ratio of 3 : 5 = 5 : 3

Reciprocal ratio of 5 : 6 = 25 : 36

Sub- duplicate ratio of 36 : 49 = 6 : 7

Required compound ratio = `(25 xx 42 xx 6)/(36 xx 25 xx 7) = 1 : 1`

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Solution Find The Ratio Compounded of the Duplicate Ratio of 5: 6, the Reciprocal Ratio of 25: 42 and the Sub-duplicate Ratio of 36: 49. Concept: Ratios.

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