Ten persons can cut 8 trees in 14 days. In how many days can 6 persons cut 10 trees?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 29.2
The work done is proportional to persons \(\times\) days, so first find how many person-days one tree takes.
8 trees take \(10\times14=140\) person-days, so one tree takes \(140\div8=17.5\) person-days
10 trees take \(10\times17.5=175\) person-days
With 6 persons: \(175\div6\approx29.2\) days