The bar graph shows the export and import of different countries. Which country's trade surplus matches the average trade surplus of all countries? (Trade surplus = Exports - Imports)
The bar graph shows the export and import of different countries. Which country's trade surplus matches the average trade surplus of all countries? (Trade surplus = Exports - Imports) Correct Answer C
Given:
Import of country A = 3300
Export of country A = 3000
Import of country B = 3600
Export of country B = 5500
Import of country C = 3000
Export of country C = 3700
Import of country D = 2000
Export of country D = 2200
Import of country E = 2000
Export of country E = 3000
Formula used:
Average = (The sum of all items)/(The total number of items)
Calculation:
⇒ The trade surplus of A = 3000 - 3300 = -300
⇒ The trade surplus of B = 5500 - 3600 = 1900
⇒ The trade surplus of C = 3700 - 3000 = 700
⇒ The trade surplus of D = 2200 - 2000 = 200
⇒ The trade surplus of E = 3000 - 2000 = 1000
⇒ The average surplus of all countries = (-300 + 1900 + 700 + 200 + 1000)/5 = 3500/5 = 700
⇒ Hence, average surplus is equal to surplus of country C
∴ The required result will be "C".