Peeyush has done 1/3rd of a job in 30 days, Sanjiv completes the rest of the job in 60 days. In how many days can they together do the job?

Peeyush has done 1/3^rd of a job in 30 days, Sanjiv completes the rest of the job in 60 days. In how many days can they together do the job?
1). 15 days
2). 45 days
3). 30 days
4). 10 days

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