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Standard VIII

Mathematics

Application of Ratios in Everyday Life

Question 125 ...

Question

Question 125 (ii)

The plan and measurement for a house are given in the figure. The house is surrounded by a path 1 m wide.

Find the cost of wooden flooring inside the house except the bathroom at the cost of ₹ 1200 per $m^{2}$

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Solution

Area of house except bathroom = Area of house - Area of bathroom
= Area of rectangle ADFH - Area of rectangle BCLK
$= (4 + 2.5 + 4) \times (3 + 3) - 2.5 \times 2$
$= 63 - 5 = 58 m^{2}$
$∴$ Cost of wooden flouring = Cost per unit $m^{2} \times$ Total area

= ₹ 1200 x 58 = ₹ 69600

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Question 125 (iii)

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Q. Question 2
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Application of Ratios in Everyday Life

Standard VIII Mathematics

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Question 125 (ii) The plan and measurement for a house are given in the figure. The house is surrounded by a path 1 m wide. Find the cost of wooden flooring inside the house except the bathroom at the cost of ₹ 1200 per m2

Area of house except bathroom = Area of house - Area of bathroom = Area of rectangle ADFH - Area of rectangle BCLK =(4+2.5+4)×(3+3)−2.5×2 =63−5=58 m2 ∴ Cost of wooden flouring = Cost per unit m2× Total area = ₹ 1200 x 58 = ₹ 69600

Question 125 (ii)

The plan and measurement for a house are given in the figure. The house is surrounded by a path 1 m wide.

Find the cost of wooden flooring inside the house except the bathroom at the cost of ₹ 1200 per $m^{2}$

Area of house except bathroom = Area of house - Area of bathroom
= Area of rectangle ADFH - Area of rectangle BCLK
$= (4 + 2.5 + 4) \times (3 + 3) - 2.5 \times 2$
$= 63 - 5 = 58 m^{2}$
$∴$ Cost of wooden flouring = Cost per unit $m^{2} \times$ Total area

= ₹ 1200 x 58 = ₹ 69600