Question

Please answer fast friends​

Answer 1

$l = 120 \: m \: and \: b = 75 \: m \\ area \: of \: field \: = l \times b \\ = 120 \times 75 \\ = 9000 \: {m}^{2} \\ cost \: of \: covering \: whole \: field = 9000 \times 5 \\ = 45000 \: rs$

$perimeter \: of \: rectangle = 2(l + b) \\ = 2 \times( 120 + 75) \\ = 390 \: m \\ cost \: of \: fencing = 390 \times 9.5 \\ = 3705 \: rs$

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Answer 2

a) area of rectangular field=l×b

=120×75=9000

cost of cultivating field = 9000×5=45000 rupees

b) perimeter of rectangular field=2(l+b)

=2×120+75

=2×195

=390m

then cost of fencing

=9.50×390

=3705 rupees

hope this helps

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