Question

9. The length and the breadth of a rectangular field are 75 m and 18 m respectively. Find the cost of ploughing it at the rate of 2.50 per square metre.​

Answer 1

Given:-

• Length of a rectangular field = 75 m

• Breadth of a rectangular field = 18 m

• Cost of ploughing = Rs. 2.50 per m²

To Find:-

• Cost of ploughing rectangular field at the rate of 2.50 per square metre.

Formula Used:-

• ${\boxed{\bf{\red{Area\:of\: Rectangle= Length \times Breadth}}}}$

Solution:-

Using Formula,

$\sf :\implies\:Area\:of\: Rectangle= Length \times Breadth$

Putting values,

$\sf :\implies\:Area\:of\: Field= 75 \times 18$

$\sf :\implies\:Area\:of\: Field= 1,350m^2$

Now,

$:\implies$ Cost of ploughing field = 1,350 × 2.5

$:\implies$ Cost of ploughing field = Rs. 3,375

Hence, The Cost of Ploughing the rectangular field at the rate of Rs. 2.50 per square metre is Rs. 3,375.

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More Formula for Rectangle:-

• $\sf Perimeter\:of\: Rectangle= 2(l+b)$

• $\sf Diagonal\:of\: Rectangle= \sqrt{l^2+b^2}$

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Answer 2

Answer

• Cost of ploughing the field = ₹ 3375

Given

• The length and the breadth of a rectangular field are 75 m and 18 m respectively.

To Find

• Cost of ploughing it at the rate of ₹ 2.50 per square meters.

Step By Step Explanation

Given that the length and the breadth of a rectangular field are 75 m and 18 m respectively.

We need to find the cost of ploughing at the rate of ₹ 2.50 per square meters.

So let's do it !!

So first we need to find the area of the field.

$\dag\boxed{\mathfrak{\red{Area _{(Rectangle)} = Length \times Breadth}}}$

By substituting the values

$\longmapsto\sf \: Area = 75 \times18{m}^{2}\\\\\longmapsto\bf Area = 1350 {m}^{2}$

Now,

$\maltese\boxed{\sf{\green{Cost= Rate \times Area \: of \: field}}}$

Substituting the value ⤵

$\longmapsto\sf Cost = 2.50 \times 1350 \\ \\ \longmapsto\sf Cost = 3375\: rupees$

Therefore cost of ploughing the field = ₹ 3375.

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