Question

The cost of cultivating a rectangular field at Rs 35 per square metre is Rs 71400 if the width of the field is 40 m find its length also find the cost of fencing the field at ₹50 per metre

Answer 1

length 51m

rupees 7100 for the field for fencing

Answer 2

Hey Mate Here is your answer

$area \: of \: field = \frac{71400}{35} = 2040 \: {m}^{2}$

$area \: of \: rectangular \: field = l \times b$

$length = \frac{area}{width} = \frac{2040}{40} = 51 \: m$

$perimeter = 2(l + b) = 2(51 + 40)$

$= 2(91) = 182 \: m$

$cost \: of \: fencing = 50 \times 182 = 9100 \: rs$

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