Human: Kirt has a $6000 monthly salary when he started his job. After a year of working, his salary increased by 30%. How much are his total earnings after 3 years? Assistant:
His annual salary for the first year of working is 6000 x 12= $72000.
Kirt's monthly increase is $6000 x 30/100= $1800.
So, he received $6000 + $1800= $7800 monthly on the second and third year of working.
Kirt's annual salary in the second and third year was $7800 x 12 = $93600.

Thus, his total earning after 3 years is $72000 + $93600 + $93600 = $259200.