Question

A window of dimensions 3m by 2m is on the wall of dimension 10m x 10m.
Find the cost of painting the wall if the rate of painting is ₹ 2.50 per square
metre.

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kuch ni
Gunnie :) ​

Answer 1

Answer:

The area of wall = Area of wall including window- area of window= 100-6=94 m^2

Cost of painting the wall= ₹ 94×2.5=₹ 235.

Its easy, you must be in 7th, right?

Hope it helps. ;-)

Answer 2

$\huge\rm\underline\purple{Given :-}$

• Dimension of window 3m × 2m
• Dimension of wall 10m × 10m
• rate of painting per sq meters ₹ 2.50

$\huge\rm\underline\purple{To Find :-}$

• cost of painting the wall

$\huge\rm\underline\purple{Solution :-}$

Area of Wall to be painted = Area of wall - Area of window

• Area of window => 3 × 2 = 6m²
• Area of wall => 10 × 10 = 100m²

Area of wall to be painted => 100m² - 6m² = 94m²

Cost of painting of wall = Rate of painting per m² × Area of wall

Cost of painting => 2.50 × 94 = ₹ 235

HOPE IT HELPS

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