The pie chart given below shows the number of trucks manufactured by six companies in a year. The total number of trucks manufactured by all these six companies is 1440. Number of trucks manufactured by a particular company is shown in terms of degree with respect to the total number of trucks manufactured by all these six companies.
What is the difference between the average number of trucks manufactured by K and P and the average number of trucks manufactured by J and M?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 160.
Concept used:
The manufacturing of the trucks is divided in degrees = 360° = 1440
Average = Sum of observations/number of observations
Calculations:
Let the total number of trucks manufactured be 360x.
According to the question;
⇒ 360x = 1440
⇒ x = 4
The average number of trucks manufactured by K and P = (K + P)/2
⇒ [(108x + 45x)/2] = 76.5x = 306
The average number of trucks manufactured by J and M = (J + M)/2
⇒ [(55x + 18x)/2] = 36.5x = 146
Hence, the required difference = 306 - 146 = 160