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1. (c): Amount spent on timber = ₹ $\left(\frac{36}{360} \times 600000\right)$ = ₹ 60000.
2. (a): Amount spent on labour = ₹$\left(\frac{90}{360} \times 600000\right)$ = ₹ 150000.
Amount spent on supervision = ₹ $\left(\frac{54}{360} \times 600000\right)$ = ₹ 90000.
$\therefore \quad$ required difference = ₹$(150000-90000)$ = ₹ 60000.
3. (a): Required percentage = $=\left(\frac{72+54+54}{360} \times 100\right) \%=\left(\frac{180}{360} \times 100\right) \%=50 \%$.
4. (c): Required fraction = $\frac{72+54}{360}=\frac{126}{360}=\frac{7}{20}$.
2. (a): Amount spent on labour = ₹$\left(\frac{90}{360} \times 600000\right)$ = ₹ 150000.
Amount spent on supervision = ₹ $\left(\frac{54}{360} \times 600000\right)$ = ₹ 90000.
$\therefore \quad$ required difference = ₹$(150000-90000)$ = ₹ 60000.
3. (a): Required percentage = $=\left(\frac{72+54+54}{360} \times 100\right) \%=\left(\frac{180}{360} \times 100\right) \%=50 \%$.
4. (c): Required fraction = $\frac{72+54}{360}=\frac{126}{360}=\frac{7}{20}$.
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