Question : Directions: The following tables show the worldwide production of steel in 1920-1927. Study the table and answer the question.
The average production of steel is (in million tonnes).
Option 1: 76.09
Option 2: 74.07
Option 3: 77.10
Option 4: 75.13
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Correct Answer: 77.10
Solution :
Based on given graph in question,
Sum of production during 1920–1927 = 71.30 + 43.51 + 67.66 + 76.23 + 77.23 + 88.93 + 91.75 + 100.17 = 616.78
Number of given years = 8
Average production during 1920 – 1927 = $\frac{\text{Sum of production during 1920–1927}}{\text{Number of given years}}$
⇒ Average production during 1920 – 1927 = $\frac{616.78}{8}$ = 77.1 million tonnes
Hence, the correct answer is 77.10.
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