The number of employees who have earned more than Rs. 600 and having more than 80% attendance (there are 25 regular working days in June 2002; some might be coming on overtime too) is:
Explanation:
80% of 25 = 20
∴ Total attendance should be more than 20 and total earning should be more than 600.
There are 7 employees (2001147, 2001159, 2001170, 2001171, 2001174, 2001177 and 2001180) who have worked for more than 20 days and whose earning is more than Rs. 600.
Hence, option (d).
Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.