His annual salary for the first year of working is 6000 x 12= $<<6000*12=72000>>72000.

Kirt's monthly increase is $6000 x 30/100= $<<6000*30/100=1800>>1800.

So, he received $6000 + $1800= $<<6000+1800=7800>>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 = $<<72000+93600+93600=259200>>259200.

# Answer

259200
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
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?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
259200
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?
train