Instructions

Answer the questions based on the following information.
The following bar diagram represents the number of daily wages (in rupees) of 100 labourers in different wage classes on a construction site. Here the class interval a-b includes all wages (in rupees) greater than or equal to a and less than b except for the interval 360-400, where both the end points are included.

No.of labourers 

                                                   Wages in Rupees

Question 2

The number of labourers receiving less than Rs.250 is

Solution
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Let's tabulate the information in the graph ,we get 

 No. of labourers who receive a wage less than 250 will be at least 10 but not more than 40 in which case all the people in the range 200-240 will be receiving a wage less than 250.

So if all the people in the range  >= 240 - <280 are included then to a maximum there will be 40 labourers to whom the wage will be less than 250.

Hence B is the correct answer.

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