The following bar graph shows the milk production (in million tons) details for 4 years for three brands (P, Q, R):

What was the average production of milk (in million tons) per year over the period of 4 years?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 90
Calculations:
Total production in 2016 = 50 + 40 + 30 = 120
Total production in 2017 = 25 + 20 + 30 = 75
Total production in 2018 = 40 + 30 + 20 = 90
Total production in 2019 = 20 + 30 + 25 = 75
Required average production = (120 + 75 + 90 + 75)/4 = 360/4
⇒ 90