258 167 Monthly expenditure in a private office for the three months is given BUSINESS MATHEMATICS-I categories of staff did not vary, calculate the salary for each type of below. Assuming that the salary in all the three months of differen staff: (Use matrix method) Number of employees Months Assistant Receptionist Peons 3 January 4 2 2 February 3 3 4. March 4 3 three different types of trucks TT Total monthly salary (in Rs) 4900 4500 5800​