Ankita can write a manuscript in 20 days. Ankita, along her friend Somya, can write the manuscript in 12 days. In how many days can Somya alone write the manuscript ?

30

Ankita (A) = 20 days,

Ankita (A) + Somya (S) = 12 days,

⇒ So, we get that Somya in 1 day = 2         ..(Efficiency)

⇒ Somya alone can write the manuscript in = \(\frac{60}{2}\) = 30 days,  ..(\(\frac{Work}{Efficiency}\) = Time )