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The bar graph given below shows the number of cars produced in the given 5 years. R = Average number of cars produced in the given 5 years A = Tot
Question

The bar graph given below shows the number of cars produced in the given 5 years.

R = Average number of cars produced in the given 5 years
A = Total number of cars produced in Y2, Y3 and Y4.
What is the value of A - R?

A.

106.2

B.

128.4

C.

148.8

D.

180.2

Correct option is C

Given:
Bar graph data for cars produced across 5 years.
R = Average number of cars produced in all 5 years.
A = Total number of cars produced in Y2, Y3, and Y4.
Formula Used:
Average = Sum of observationsNumber of observations \frac{Sum\ of\ observations}{Number\ of\ observations}​​
Solution:
Average number of cars produced in all 5 years:

R = 78+85+69+74+905\frac{78 + 85 + 69 + 74 + 90 }{5}​ = 79.2
Total number of cars produced in Y2, Y3 and Y4: 

A = 85 + 69 + 74 = 228
Now, 

A - R = 228 - 79.2 = 148.8
Final Answer
So the correct answer is (c)

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