Study the given graph and answer the question that follows.
The number of weeks, in which the cost of living index was 160 or more but less than 190, is approximately what percent more than the number of weeks in which the cost of living index was 200 or more but less than 220 ( correct to one decimal place)?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 58.3.
The number of weeks, in which the cost of living index was 160 or more but less 190 = 4 + 6 + 9 = 19.
The number of weeks, in which the cost of living index was 200 or more but less than 220 = 7 + 5 = 12
required % = (19 - 12)/12 × 100 = 58.3%.