A rectangular garden of length $40 m$ and breadth $30 m$ has a path of width $2 m$ in the middle across its length and breadth. If the path is to be paved with square tiles of sides $25 c m$ that costs Rs. $10$ each. Calculate the cost of paving

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Solution

REF.Image
Area of path = $(40 \times 2) + (30 \times 2) - (2 \times 2)$
${- (2 \times 2)$ for middle area being
counted twice $}$
$= 80 + 60 - 4 = 136 m^{2}$
$\Rightarrow$ square files needed = $\frac{T o t a l a r e a}{a r e a o f 1 t i l e}$
$= \frac{136}{\frac{25}{100} \times \frac{25}{100}} = 136 \times 16 = 2176$
$\Rightarrow$ Total cost = Rs. 21760

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A rectangular garden of length 40m and breadth 30m has a path of width 2m in the middle across its length and breadth. If the path is to be paved with square tiles of sides 25cm that costs Rs. 10 each. Calculate the cost of paving

REF.ImageArea of path = (40×2)+(30×2)−(2×2){−(2×2) for middle area beingcounted twice }=80+60−4=136m2⇒ square files needed = Totalareaareaof1tile=13625100×25100=136×16=2176⇒ Total cost = Rs. 21760

A rectangular garden of length $40 m$ and breadth $30 m$ has a path of width $2 m$ in the middle across its length and breadth. If the path is to be paved with square tiles of sides $25 c m$ that costs Rs. $10$ each. Calculate the cost of paving