The number of cars passing the road a colony from 6 am to 12 noon has been shown in the following histogram.
What is the minimum change percentage in the number of cars in comparison to the previous hour? (correct to 2 decimal places)
Answer & explanation
Correct answer: option 2
Percentage change in 7-8 comparative to 6-7 = \(\frac{35}{70}\) × 100
= + 50%
Percentage change in 8-9 comparative to 7-8 = \(\frac{25}{105}\) × 100
= + 23.81%
Percentage change in 9-10 comparative to 8-9 = \(\frac{15}{130}\) × 100
= - 11.54%
Percentage change in 10-11 comparative to 9-10 = \(\frac{20}{115}\) × 100
= - 17.4%
Percentage change in 11-12 comparative to 10-11 = \(\frac{50}{95}\) × 100
= 52.63%
Minimum percentage change is 11.54%