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Question

The cost harvesting a square field at Rs.900 per hectare is Rs.8100. Find the cost of putting a fence around it at Rs.18 per metre.


Solution

Given:
The cost of harvesting a square field = Rs.900 per hectare 

Money spent=Rs 8100

area of field =

8100 over 900 equals 9 space h e c t a r e a n d space 1 space h e c t a r e space equals 10000 m squared i e space t o t a l space a r e a space o f space f i e l d space equals 90000 m squared equals a squared equals a r e a space o f space s q space f i e l d s o space a equals square root of 90000 equals 300 m equals s i d e
Given;
Cost of putting a fence around it at Rs.18 per metre.
Perimeter of field = 4×side 
=4×300
=1200m
Cost of fencing =18×1200
= Rs. 21,600


Mathematics
Secondary School Mathematics X
Standard X

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