Cost of 5 pens and 7 note books is Rs 82 and cost of 4 pens and 4 note books is Rs 52. Find the cost of 2 note books and 3 pens

Correct option is (D) Rs \(18\frac{3}{4}\) \(\because\) Cost of \(5\frac{2}{5}\) litres of milk = Rs \(101\frac{1}{4}\)  \(\Rightarrow\) Cost of \(\frac{27}{5}\) litres of milk = Rs \(\frac{405}4\) \(\therefore\) Cost of 1 litres of milk = Rs \((\frac{405}4\div\frac{27}5)\) = Rs \((\frac{405}4\times\frac5{27})\) = Rs \((\frac{45}4\times\frac5{3})\) = Rs \((\frac{15\times5}4)\) = Rs \(\frac{75}4\) = Rs \(\frac{18\times4+3}4\) = Rs \((18+\frac34)\) = Rs \(18\frac{3}{4}\).

Correct option is  C) ₹ 25,000

Correct Answer - ₹5,₹8,₹8

Correct option is (B) ₹ 3000 \(\because\) The cost of 65 packets of tea = Rs 2600 \(\therefore\) The cost of 75 packets of tea \(=Rs(\frac{2600}{65}\times75)\) \(=Rs(\frac{200}{5}\times75)\) \(=Rs(200\times15)\) = Rs 3000

Correct option is (B) ₹1960 \(\because\) The cost of 20 m of cloth = Rs 1600 \(\therefore\) The cost of 24.5 m of cloth \(=Rs\,(\frac{1600}{20}\times24.5)\) \(=Rs\,(80\times24.5)\) = Rs 1960

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