SSC MTS 26 Jul 2022 Shift 2 Paper

G₁ can do a piece of work alone in 20 days, G₂ can do the same piece of work alone in 40 days, while G₃ can do it alone in 60 days. They worked together and completed the work. If the combined share received by G₁ and G₂ is Rs. 2,700, then what is the total amount received by all the 3 workers taken together?