Study the graph which shows the daily wages (in Rs.) with number of workers and answer the question that follows.
If the ratio of the total number of workers whose daily wages are less than Rs. 450 to the total number of workers whose daily wages are Rs. 600 or above is a : b, then what is the difference between b and a?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 2.
Explanation:
According to the given graph,
Total number of workers whose daily wages are less than Rs. 450 = 30
Also, total number of workers whose daily wages are Rs. 600 or above = (55 + 35) = 90
Now from the given question, a : b = 30 : 90 = 1 : 3
So, b - a = 3 - 1 = 2
Hence the required answer is 2.