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प्रश्न
Find the compound ratio of the following:
If P : Q = 6 : 7, Q : R = 8 : 9 find P : Q : R.
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उत्तर
P : Q = 6 : 7, Q : R = 8 : 9
`"P"/"Q" = (6)/(7) xx (8)/(8), "Q"/"R" = (8)/(9) xx (7)/(7)`
`"P"/"Q" = (48)/(56), "Q"/"R" = (56)/(63)`
∴ P : Q : R = 48 : 56 : 63.
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