Question

The base of a rectangular field is 3 times its height. If the cost of cultivating the field at Rs 36 per hectare is rupees 486, Find its base and height (1hectare = 10000m sq)

Answer 1

let the breadth of a rectangular field be X and the length be 3x
a/q
3x² = 4860000/36
x² = 4860000/108
X = √45000
150√2
hence
height = 150√2 m = 212.10 m
base = 450√2 m = 636.30 m