48 30 A cycle was sold a gain of - 10 - - - Had it been sold - R - s- 99 more- the gain would have been - 12 - - Find the cost price of the cycle If - 3 x - 2 y - 12 - and - x y - 6 - - the value of - 9 x - - 2 - - 4 y - - 2 - -

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48 30 A cycle was sold at a gain of \( 10 \% . \) Had it been sold for \( R \) s. 99 more. the gain would have been \( 12 \% \). Find the cost price of the cycle If \( 3 x + 2 y = 12 \) and \( x y = 6 , \) find the value of \( 9 x ^ { 2 } + 4 y ^ { 2 } \)