Quantitative Aptitude

A dual bar chart depicts fertilizer demand and supply (in thousand tonnes): Year 1 (Demand 500, Supply 400), Year 2 (Demand 600, Supply 500), Year 3 (Demand 700, Supply 630). The overall supply deficit percentage relative to total demand over the three years combined is:

Options:

• (A) 15%
• (B) 12%
• (C) 18%
• (D) 10%