Study the given table and answer the question that follows. The given table shows the production of three types of cars (A, B, and (C) manufactured (in thousands) by an automobile company over the years. For all the years from 2015 to 2018, the average production of B-type cars is how much less (in thousands) than that of the combined average production of A-type and C-type cars?

Year	A	B	C
2015	840	680	890
2016	900	750	960
2017	760	620	1000
2018	800	540	1200

Average production = $$\frac{\text{Total production over the years}}{\text{Number of years}}$$​​

Average production of B-type cars:

​$$\text{Average of B} = \frac{680 + 750 + 620 + 540}{4} = \frac{2590}{4} = 647.5 \, \text{(in thousands)}$$​​

Combined average production of A-type and C-type cars:

Total production of A-type cars: 840 + 900 + 760 + 800 = 3300

Total production of C-type cars: 890 + 960 + 1000 + 1200 = 4050

Combined total of A and C: 3300 + 4050 = 7350

​$$\text{Combined average of A and C} = \frac{7350}{8} = 918.75 \, \text{(in thousands)}$$​​

Now,

​$$\text{Difference} = 918.75 - 647.5 =\bf 271.25 \, \text{(in thousands)}$$​​

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