Question

the length and the breadth of a rectangular field are in the ratio 7 : 4 the cost of fencing the field at rupees 25 per metre is rupees 3300 find the dimension of the field ​

Answer 1

Step-by-step explanation:

l:b=7:4 i.e 7x:4x

l= 7x

b= 4x

perimeter of rectangular field= 2(l+b)

= 2(7x+4x)

=2(11x)

=22x

total cost of fencing is ₹3300

cost of fencing per metre is ₹25

= perimeter × cost of fence per metre=total cost of fencing

=22x × ₹25=₹3300

= x=6

Thus length and breadth are 7x and 4 x respectively

SO,

l= 7x= 7×6=42 metres

b= 4x= 4×6=24 metres

CONCLUSION:Hence,the dimensions of rectangular field are 42 metres and 24 metres

Answer 2

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