The number of cars passing the road near 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 companies to the previous hour? (Correct to 2 decimal places)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 11.54%
Calculations:
Percentage change in the number of cars between 6am and 7am = (105 - 70)/70 × 100 = 50%
Percentage change in the number of cars between 7am and 8am = (130 - 105)/105 × 100 = 23.8%
Percentage change in the number of cars between 8am and 9am = (115 - 130)/130 × 100 = -11.54%
Percentage change in the number of cars between 9am and 10am = (95 - 115)/115 × 100 = -17.39%
Percentage change in the number of cars between 10am and 11am = (45 - 95)/95 × 100 = -52.6%
Minimum change percentage in the number of cars in companies to the previous hour is 11.54%