Question

10. One side of a square garden is 85 decameter. What is the cost of fencing it at the rate of 25 paise per metre
(a) 160 m (b) 800 m²
(c) 100 m² (d) 250 m²
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Answer 1

Answer:

answer for the given problem is given

Answer 2

$\large\bf\underline {To \: find:-}$

• we need to find the cost of fencing at the rate of 25 paise.

$\large\bf\underline{Given:-}$

• one side of square garden is 85decameter

$\huge\bf\underline{Solution:-}$

One side square garden is 85 decameter.

• 1 decameter = 10meters
• 85 decameter = 85 × 10 meter
• side = 850meter

Fencing can be done on the boundaries .

So,

$\red{ \sf{perimeter \: of \: square = 4 s}}$

where ,

⚘ 4 is the number of sides in square and s is the length of sides.

• side = 850m

⪼ perimeter of square = 4 × 850m

⪼ perimeter of square = 3400meters.

Now,

⚘ Cost of fencing the square field at the rate of 25paise :-

• ➛ 3400 × 25
• ➛ 85000paise

• ⚘⪼1 rupee = 100paise
• 85000paise = 850 Rupees

Hence ,

⚘Cost of fencing the field is Rs850

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