The production of goods in a factory over 9 months is shown in the graph.

The average growth (in tons per month) over the period under consideration

Correct option is A

Solution:

The production values (in tons) from month 0 to 8 are visually:

$$\text{Average Growth} = \frac{(3.0 - 2.6) + (3.3 - 3.0) + (3.5 - 3.3) + (3.8 - 3.5) + (4.2 - 3.8) + (4.0 - 4.2) + (4.5 - 4.0) + (5.0 - 4.5)}{8} \\= \frac{2.4}{8} = 0.3$$

Final Answer:
(a) is 0.3​​