Question

The average salary per head of the entire staff of an office including the officers and clerks
is Rs.100. The average salary per head of the officers is Rs. 600 and that of clerks is Rs.84.
If the number of officers is 12. The number of clerks in the office is:

Answer 1

Answer:

1020

Step-by-step explanation:

Let the number of passed clerks be x

Total salary for clerks = Rs.84x

Total salary of officers Rs.12×600 = Rs.7200

Total salary of the staff of office

(Number of officers + Number of clerks)×90

84x+7200=(12+x)×90

=1080+90x

6x=7200−1080=6120

x=61206=1020