Question

the cost of 3 1/2 kg of sugar is rs.63. find the cost of 1 3/4 kg of sugar ​

Answer 1

Dear Student,

$$\begin{gathered} \mathrm{Cost}\mathrm{of}3\frac{1}{2}\mathrm{kg}\left(\mathrm{or}\frac{7}{2}\mathrm{kg}\right)\mathrm{of}\mathrm{sugar}=\mathrm{Rs}63 \\ \mathrm{Then},\mathrm{cost}\mathrm{of}1\mathrm{kg}\mathrm{of}\mathrm{sugar}=\mathrm{Rs}\left(63÷\frac{7}{2}\right)=63\times \frac{2}{7}=\mathrm{Rs}18 \\ \mathrm{Thus},\mathrm{cost}\mathrm{of}1\frac{3}{4}\mathrm{kg}\left(\mathrm{or}\frac{7}{4}\mathrm{kg}\right)\mathrm{of}\mathrm{sugar}=\mathrm{Rs}\left(18\times \frac{7}{4}\right)=\mathrm{Rs}\left(\frac{63}{2}\right)=\mathrm{Rs}31.50 \end{gathered}$$

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