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 ?
Answer & explanation
Correct answer: option 4
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 )