Question

A field is one and a half time as long as it is wide. The cost of ploughing the field at the rate of tk 25 per square meter is tk 15000. Find the cost of fencing the field at the rate of tk 50 per meter.

Answer 1

Answer:

5000 tk

Step-by-step explanation:

let breadth = b

then...

length = 1 1/2 b = 3/2b

area = 15000/25 = 600 m^2

length * breadth = b * 3/2b = 600

3/2b^2 = 600

b^2 = 600*2/3

b^2 = 200 × 2

b^2 = 20 ×20

b = 20 m......l = 30

2 (l + b) = 2 ( 20 + 30 )

2 × 50

100m

cost of fencing = 100 × 50

5000 tk

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