# The plan and measurement for a house are given in Fig. 9.67. The house is surrounded by a path 1m wide. Find the cost of wooden flooring inside the house except the bathroom at the cost of ₹1200 per m².

**Solution:**

The figure represents the plan and measurement for a house.

The house is surrounded by a path 1 m wide.

We have to find the cost of wooden flooring inside the house except the bathroom at the cost of ₹1200 per m².

Area of rectangle = length × breadth

Area of wooden flooring = __area of rectangle__ ADFH - area of BCLK

Considering rectangle ADFH,

Length = 4 + 2.5 + 4 = 10.5 m

Breadth = 3 + 3 = 6 m

Area = 10.5(6)

= 63 m²

Considering rectangle BCLK,

Length = 2.5 m

Breadth = 2 m

Area = 2.5(2)

= 5 m²

Area of wooden flooring = 63 - 5

= 58 m²

Cost of flooring 1 m² = ₹1200

Cost of flooring 58 m² = 1200 × 58

= ₹69600

Therefore, the cost of wooden flooring inside the house except the bathroom is ₹69600.

**✦ Try This: **Find the area of the figure.

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

**NCERT Exemplar Class 7 Maths Chapter 9 Problem 125 (ii)**

## The plan and measurement for a house are given in Fig. 9.67. The house is surrounded by a path 1m wide. Find the cost of wooden flooring inside the house except the bathroom at the cost of ₹1200 per m².

**Summary:**

The plan and measurement for a house are given in Fig. 9.67. The house is surrounded by a path 1m wide. The cost of wooden flooring inside the house except the bathroom at the cost of ₹1200 per m² is ₹69600.

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