Question

The bar graph below shows the monthly demand and production figures (in units) of five T.V. companies, A, B, C, D and E. Study it and answer the question that follows.

What is the difference between the average demand and the average production of the five companies taken together?

• A. 1400
• B. 400
• C. 280
• D. 138

Hint:

Add all five demand values and all five production values separately, then compare the two averages.

Answer 1

The Correct Option is C

Step 1: Read the demand figures from the graph.
Demand values are: A = 3000, B = 600, C = 2500, D = 1200, E = 3300.

Step 2: Add the demand values and find the average.
Total demand \( = 3000 + 600 + 2500 + 1200 + 3300 = 10600 \). Average demand \( = \dfrac{10600}{5} = 2120 \) units.

Step 3: Read the production figures from the graph.
Production values are: A = 1500, B = 1800, C = 1000, D = 2700, E = 2200.

Step 4: Add the production values and find the average.
Total production \( = 1500 + 1800 + 1000 + 2700 + 2200 = 9200 \). Average production \( = \dfrac{9200}{5} = 1840 \) units.

Step 5: Find the difference between the two averages.
Difference \( = 2120 - 1840 = 280 \).

Final Answer:
The average demand exceeds the average production by 280 units. \[ \boxed{280} \]