Study the given graph and answer the question that follows.
By what percentage (approximately)is the average number of vehicles of type B produced in 2014, 2016 and 2018 less than the number of vehicles of type A produced in 2017?
Answer & explanation
Correct answer: option 3
Average number of vehicles of type B produced in 2014, 2016 and 2018
= \(\frac{180+225+450}{3}\)
= \(\frac{ 855}{3}\)
= 285
Number of vehicles of type A produced in 2017 = 360
Required percentage = \(\frac{360 - 285 }{360}\) × 100
= \(\frac{ 75 }{360}\) × 100
= 20.8%