Discussion

Explanation:

​​​​​​​

Growth rate in production = $\left(\frac{\mathrm{Difference} \mathrm{in} \mathrm{production} \mathrm{in} 2011 \mathrm{and} 2005}{\mathrm{Production} \mathrm{in} 2005}\right)$ × 100

​​​​​​​

According to the table:

Iron ore production in 2008 grows by $\left(\frac{29}{102}\right)$ × 100 ≈ 29%

Gold production in 2011 grows by $\left(\frac{5}{20}\right)$ × 100 = 25%

Aluminium production in 2008 grows by $\left(\frac{17}{81}\right)$ × 100 < 25%

Gold production in 2006 grows by $\left(\frac{3}{15}\right)$ × 15 = 20%

Hence, option (a).

» Your doubt will be displayed only after approval.