Explanation:

- Let's assume Vijay, Sahil, and Ranjit take V, S, and R days, respectively, to complete the work individually.

- Together, Vijay and Sahil complete the work in 40 days, so their combined work per day is 1/40.

- Sahil and Ranjit complete the work in 48 days, so their combined work per day is 1/48.

- Ranjit and Vijay complete the work in 60 days, so their combined work per day is 1/60.

- We add the three combined rates:

$$(V+S) + (S+R) + (R+V)$$

equals

$$(S+S+V+V+R+R)$$, simplify to

$$(2V + 2S + 2R)$$

equals

work rates:

$$1/40 + 1/48 + 1/60 $$

- Combine these into a single rate, yielding:

$$1/24$$

- This means that Vijay, Sahil, and Ranjit can complete the work together in 24 days.

Option:2 - 24