The line chart given below shows the monthly petrol consumption (in litres) by 6 different cars CR1, CR2, CR3, CR4, CR5 and CR6.

What is the average monthly consumption (in litres) of petrol per car for these 6 cars?
Show answer & explanation
Correct answer: B
Explanation
Given:
CR1 = 74, CR2 = 96, CR3 = 79, CR4 = 60, CR5 = 76, CR6 = 75
According to the formula:
Average = Total Sum / Number
Total = 74 + 96 + 79 + 60 + 76 + 75 = 460
Average = 460 / 6 = 76.67 liters