A. 20
B. 21
C. 22
D. 23
Explanation:
Let the total number of workers be x. Then,
8000x = (12000 * 7) + 6000(x – 7)
= 2000x = 42000
= x = 21
Related Mcqs:
- The average salary of workers in an industry is Rs.200 the average salary of technicians being Rs.400 and that of non-technicians being Rs.125. What is the total number of workers?
A. 250
B. 275
C. 550
D. 400 - In a factory, there are 40% technicians and 60% non-technicians. If the 60% of the technicians and 40% of non-technicians are permanent employees, then the percentage of workers who are temporary is________?
A. 32%
B. 42%
C. 52%
D. 62% - The average of women and child workers in a factory was 15%yr. The average age of all the 16 children was 8yr and average age of women workers was 22 yrs if ten women workers were married then the number of unmarried women workers were________?
A. 16
B. 12
C. 8
D. 6 - The average monthly salary of 20 employees in an organisation is Rs. 1500. If the manager’s salary is added, then the average salary increases by Rs. 100. What is the manager’s monthly salary?
A. Rs. 2000
B. Rs. 2400
C. Rs. 3600
D. Rs. 4800 - The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?
A. 3000
B. 2500
C. 4500
D. 5000 - Masood’s salary is reduced by 10% and then reduced salary is increased by 10%. Find ,how many percentage his present salary is less as compared to his previous salary?
A. Nothing
B. 10%
C. 1%
D. 5% - The average salary per head of the entire staff of an office including the officers and clerks is Rs.90. The average salary of officers is Rs.600 and that of the clerks is Rs.84. If the number of officers is 2, find the number of officers in the office?
A. 1540
B. 960
C. 840
D. 1020 - Moons salary was first increased by 20% and then decreased by 20%. If his present salary is Rs. 7200, then what was his original salary?
A. Rs. 8000
B. Rs. 7500
C. Rs. 7400
D. Rs. 7200
E. None of these - What is the ratio of Faheem’s salary to Imran’s salary to Naveed’s salary if Faheem makes 80,000 rupees ,Imran 70,000 rupees and Naveed makes 50,000 rupees ?
A. 80:70:60
B. 8:7:5
C. 4:7:5
D. 7:8:5Submitted by: Faheem Zaman Dhaunroo
- A, B and C started a business with capitals of Rs. 8000, Rs. 10000 and Rs. 12000 respectively. At the end of the year, the profit share of B is Rs. 1500. The difference between the profit shares of A and C is?
A. Rs. 300
B. Rs. 400
C. Rs. 500
D. Rs. 600
E. None of these