Question

15 persons can do make a 10 spare parts of a passenger vehicle in 16 days. In how many days can 8 persons make 20 spare parts?

Answer 1

15person takes 16days = 10spare parts

so 1person takes (2×15×16)days to make 20 spare parts

so 8 persons will complete it in (2×15×16)÷(8)= 60days