Question

Neeraj can do a piece of work in 10 days , Aman can do the same work in 12 days. Neeraj, Aman and Virat together finish the same work in 4 days. In how many days will Virat complete the work alone?​

Answer 1

Neeraj work = 1 / 10

Aman work = 1 / 12

Neeraj + Aman work = 1 / 10 + 1 / 12

= 6 / 60 + 5 / 60 = 11 / 60

let Virat work be x

All work = 11 / 60 + x = 4

Take LCM

11 + 60x = 4 × 60

60 x = 240 - 11

x = 229 / 60