Question

If 10 tractors can plough 1/6th of a field in 12 days,
how many days 20 tractors will take to do the re-
maining work?

Answer 1

TOTAL WORK = 1

WORK DONE 1/6

REMAINING = 5/6

NO. OF TRACTORS WE'VE = 20

DAYS = (5/6)/X × 20

= 5/6X × 20

X= 100/6

X= 16.67 DAYS