The number of employees is reduced in the ratio 3: 2 and the salary of each employee are increased in the ratio 4: 5. By doing so, the company saves Rs. 12000. What was the initial expenditure on the salary?

72000

                                        Initial       Final

Number of employee              3     :      2

Salary of each employee        4     :      5

---------------------------------------------------------------

Company expenditure          3×4   :     2×5

                                            12   :       10

ATQ,

( 12 - 10 )R = 12000

2R = 12000

1R = 6000

Initial expenditure = 12 R = 12 × 6000 = 72000