Study the graph which shows the daily wages (in ₹ ) 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 ₹450 to the total number of workers whose daily wages are ₹ 600 or above is a : b, then what is the difference between b and a?
Answer & explanation
Correct answer: option 1
Total number of workers whose daily wages are less than ₹450 : Total number of workers whose daily wages are ₹ 600 or above
(30) : (55 + 35)
30 : 90
1 : 3
ATQ ,
a : b = 1 : 3
Now , ( b - a ) = 3 - 1 = 2