Respuesta :
Answer: Second option is correct.
Step-by-step explanation:
Since we have given that
Number of tons of steel in one year = 150 tons
Number of tons of steel next year = 180 tons
Increase in the number of tons is given by
[tex]180-150\\\\=30\ tons[/tex]
We need to find the percentage increase in the output is given by
[tex]\frac{Difference}{Original}\times 100\\\\=\frac{30}{150}\times 100\\\\=\frac{1}{5}\times 100\\\\=20\%[/tex]
Therefore, there is increase of 20% in the output.
Hence, Second option is correct.