GATE CS 2015 Set 3 QGA-10 — General Aptitude

To find the year with the highest combined percentage increase in imports and exports, we first calculate the combined value (Exports + Imports) for each year from the bar chart:

• 2000: $30 + 40 = 70$
• 2001: $40 + 50 = 90$
• 2002: $50 + 60 = 110$
• 2003: $60 + 70 = 130$
• 2004: $70 + 80 = 150$
• 2005: $80 + 90 = 170$
• 2006: $120 + 130 = 250$
• 2007: $130 + 140 = 270$

Next, we calculate the percentage increase for each year relative to the previous year:

• 2001: $\frac{90 - 70}{70} \times 100\% \approx 28.57\%$
• 2002: $\frac{110 - 90}{90} \times 100\% \approx 22.22\%$
• 2003: $\frac{130 - 110}{110} \times 100\% \approx 18.18\%$
• 2004: $\frac{150 - 130}{130} \times 100\% \approx 15.38\%$
• 2005: $\frac{170 - 150}{150} \times 100\% \approx 13.33\%$
• 2006: $\frac{250 - 170}{170} \times 100\% = \frac{80}{170} \times 100\% \approx 47.06\%$
• 2007: $\frac{270 - 250}{250} \times 100\% = 8.00\%$

The highest combined percentage increase occurs in the year 2006 with approximately $47.06\%$.