18 mans plogh 18 bigha field in 18 days. So how many man plough the field in 1 days

shouldn't 1 man be an option ? Not 1 bigha

The field inside a  running track is to be seeded. Each straight portion of the track is . Each curved part of the track is a semicircle. One  bag of grass seed will seed an area of .

a. What is the length of each curved part of the track?

b. Determine the width of the field.

c. Determine the area of the field to the nearest .

d. Determine the number of bags of seed required.

e. One  bag of grass seed costs . How much does it cost to seed the field?

A rectangular field with an area of 8000m2 is enclosed by 400 m of fencing. Determine the dimensions of the field to the nearest tenth of a metre. 

A rectangular field 220 metres long and 300 metres wide is surrounded by a post and rail fence. Draw and label a diagram of the field and find the total length of the fence.