Mensuration Practice Test 6

Question : 31 of 40

Marks: +1, -0

The cost of cultivating a square field at a rate of Rs 135 per hectare is Rs 1,215. The cost of putting a fence around it at the rate of 75 paise per metre would be:

Rs 360
Rs 810
Rs 900
Rs 1,800

Validate

Solution:

Area under cultivation =

{1215}/{135}

hectare
= 9 hectare
= (9 × 10,000)

m^2

= 90000

m^2

Side of a square field =

√{90000}

= 300 m
Perimeter = 4 × 300 = 1,200 m
Cost of fencing = 1,200 ×

{75}/{100}

= Rs 900

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