Question

white washing the wall, if the rate of
white washing the wall is 12 per m².
- A door of 4 x 2 m and two windows
each of 3 x 2 m' are fitted in a wall. The
length and breadth of a wall are 15 m
and 10 m respectively. Find the cost of



Plz tell the Answer​

Answer 1

ANSWER: Rs.1560

Step-by-step explanation:

Cost of whitewashing per m^2= Rs. 12

THEREFORE,

AR of WALL: l*b = 15*10 = 150 m^2

AR of Door: l*b= 4*2 = 8 m^2

AR of 2 Windows : l*b = 3*2*2 = 12 m^2

therefore total area to paint = 150-(12+8) = 130

Therefore the cost of painting = 130*12 = Rs.1560

Answer 2

Answer:

area  of wall = 15m * 10m

= 150 m²

area of door = 8m²

area of 1 window = 6m²

area of 2 windows = 6m² * 2

= 12m²

total area of a door and the 2 windows = 8m² + 12m²

= 20 m²

area for whitewashing = 150 m² - 20 m²

= 130m²

cost of whitewashing = ₹ 12

Total cost of whitewashing = ₹12 * 130

= ₹1560

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