Data Interpretation MCQ Questions and Answers

Directions (1 - 4): Study the following graph carefully and answer the given questions.
Direction image of Bar Chart chapter

What is the ratio between average production by company B in three years to the average production by company C in three years?

A) 1 : 2 B) 4 : 3 C) 3 : 2 D) 2 : 3

Discuss

Answer & Solution

$$\eqalign{ & \text{B} = \frac{40 + 30 + 50}{3} = \frac{120}{3} = 40 \cr & \text{C} = \frac{20 + 40 + 20}{3} = \frac{80}{3} \cr & \text{then B : C} = 40 : \frac{80}{3} \cr & \,\,\,\,\,\,\,\,\, \text{B : C} = 3 : 2 \cr} $$

Which company has the highest average production over the three years?

A) Company A B) Company C C) Company D D) Company B

Discuss

Answer & Solution

$$\eqalign{ & \text{A} = \frac{20 + 30 + 20}{3} \cr & \,\,\,\,\, = \frac{70}{3} \cr & \,\,\,\,\, = 23.33 \cr & \cr & \text{B} = \frac{40 + 30 + 50}{3} \cr & \,\,\,\,\, = \frac{120}{3} \cr & \,\,\,\,\, = 40 \cr & \cr & \text{C} = \frac{20 + 20 + 40}{3} \cr & \,\,\,\,\, = \frac{80}{3} \cr & \,\,\,\,\, = 26.66 \cr & \cr & \text{D} = \frac{60 + 30 + 40}{3} \cr & \,\,\,\,\, = \frac{130}{3} \cr & \,\,\,\,\, = 43.33 \cr} $$
So company D has the highest production.

Which the drop in production of company D from year 2010 to 2012 in percentage?

A) 18% B) 33.3% C) 50% D) 25%

Discuss

Answer & Solution

$$\eqalign{ & = \frac{20}{60} \times 100 \cr & = 33\frac{1}{3}\% \cr & = 33.3\% \cr} $$

The total production of companies A and D in year 2010 is what percent of total production of four companies in the year 2012?

A) 57% B) 55% C) 52% D) 61%

Discuss

Answer & Solution

In 2010, A and D
= 20 + 60
= 80
In 2012, A + B + C + D
= 20 + 50 + 20 + 40
= 130
= $$\frac{80}{130}$$ × 100
≈ 61%

Data Interpretation MCQ Questions and Answers - Bar Chart