Question : The bar graph below shows the sales of two companies C1 and C2 in 5 years.
J1 = The average sale of company C1 in years Y1, Y2, and Y3.
J2 = The difference between the total sales of company C1 and C2 in all 5 years.
what is the value of ($\frac{\text{J2}}{\text{J1}}$)?
Option 1: 4
Option 2: 2
Option 3: 3
Option 4: 1
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Correct Answer: 2
Solution :
J1 = The average sale of company C1 in year Y1, Y2 and Y3 = $200 + 400 + 600 = \frac{1200}{3}= 400$
J2 = The difference between the total sales of company C1 and C2 in all the 5 years
= $(1000 + 700 + 800 + 200 + 100) - (200 + 400 + 600 + 500 + 300)$
= $2800 - 2000 = 800$
$\therefore$ The value of ($\frac{\text{J2}}{\text{J1}}$) = $\frac{800}{400}$ = 2
Hence, the correct answer is 2.
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