Ashar can do a work in 40 days. He worked as it for 8 days and left the work, after which Aman joined the work and finished the remaining work in 16 days. How long will Aman take to complete the whole work ?
Answer & explanation
Correct answer: option 3
Total work = Time × Efficency
Ashar worked for 8 days and left the work.
Work done by Ashar in 8 days = 8 × 1 = 8
Remaining work = 32
Aman does the remaining work in 16 days.
Efficiency of Aman = \(\frac{32}{16}\) = 2
Now,
time taken by Aman to complete the work = \(\frac{40}{2}\) = 20 days
The correct answer is option (3) : 20 days