Question

find the cost of fencing a rectangular field of length 10m, breadth 5m at the rate of rs. 50 perimetre.

Answer 1

Given :

A rectangular field of length 10m, breadth 5m at the rate of rs. 50 perimetre.

To find :

find the cost price

solution :

Perimeter of the rectangular field

⇛ 2 x (length + breadth)

⇛ 2 x (10 + 5) m

⇛ 30 m

Cost of fencing = Perimeter x Cost per meter

⇛ 30 x 50 Rs

⇛ 1500 Rs

⁛ Thus, the cost of fencing a rectangular field is Rs 1500

Answer 2

$\mathcal{\pink{\underline{\underline{\blue{GIVEN:-}}}}}$

• Length [Rectangular field] = 10m

• Breadth [ )) ] = 5m

• Cost per meter = Rs.50

$\mathcal{\pink{\underline{\underline{\blue{TO\:FIND:-}}}}}$

• The cost for fencing the rectangular field .

$\mathcal{\pink{\underline{\underline{\blue{SOLUTION:-}}}}}$

$\orange\bigstar\:\rm{\purple{\boxed{\red{Perimeter\:of\atop{Rectangular\:field}\:=\:2\times[length(l)\:+\: breadth(b)]\:}}}}$

• l = 10m

• b = 5m

$\rm{\implies\:Perimeter\:=\:2\times[10\:+\:5]\:}$

$\rm{\implies\:Perimeter\:=\:2\times{15}\:}$

$\rm\underline\green{\implies\:Perimeter\:=\:30\:m\:}$

According to the question,

✍️ Cost of fencing 1m = Rs.50

=> Cost of fencing 30m = 50 × 30

=> Cost of fencing 30m = Rs.1500

$\rm{\pink{\therefore}}$ The cost of fencing the rectangular field is “Rs.1500” .