Use the Fig. 9.57 showing the layout of a farm house

It costs ₹ 91 per m² to fertilise the vegetable garden. What is the total cost?

Solution:

From the figure,

Length of land used to grow vegetables = 49 m

Breadth of land used to grow vegetables = 15.2 m

We know that,

Area of vegetable garden = 49 x 15.2

= 744.80 m²

Given,

Cost to fertilise 1 m² vegetable garden = ₹ 91

So, the cost to fertilise 744.80 m² vegetable garden = 91 x 744.80

= ₹ 67776.80

Therefore, the total cost is ₹ 67776.80.

✦ Try This: A circular pond is surrounded by a 1 m wide circular path. If outer circumference of circular path is 22 m, find the inner circumference of the circular path. Also find area of the path.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 11

NCERT Exemplar Class 7 Maths Chapter 9 Problem 112(b)

Use the Fig. 9.57 showing the layout of a farm house: It costs ₹ 91 per m² to fertilise the vegetable garden. What is the total cost?

Summary:

Using the Fig. 9.57 showing the layout of a farm house, if it costs ₹ 91 per m² to fertilise the vegetable garden, the total cost is ₹ 67776.80

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