a dealer sold of VCR and a TV for Rs. 25 820 making a profit of 10% on VCR and 15% on TV. By selling them for Rs. 259 30 he would have realised the profit of 15% on VCR and 10% on TV find the cost price of each. PLEASE ANSWER THIS...and NO weird answers!!!
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Solution :-
We know that
\boxed{\bf CSA = \pi rl}
CSA=πrl
↠ CSA = π × 6 × 12
↠ CSA = π × 72
↠ CSA = 72π
∴ CSA is 72 π cm²
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