Mr chopra wants to put a wooden border around a painting. If the length of the painting is $40 c m$ and its breath is $25 c m$ , what will be the cost of putting the border at $R s . 40 p e r m$ ?

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Solution

Perimeter = $2 (l + b) = 2 (40 + 25) = 130 c m^{2}$
Rate = Rs 40 per m = Rs $\frac{40}{100}$ per cm
Cost = $130 \times \frac{40}{100} = 52$ Rs

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Mr chopra wants to put a wooden border around a painting. If the length of the painting is 40 cm and its breath is 25 cm, what will be the cost of putting the border at Rs. 40 per m ?

Perimeter = 2(l+b)=2(40+25)=130cm2Rate = Rs 40 per m = Rs 40100 per cmCost = 130×40100=52 Rs

Mr chopra wants to put a wooden border around a painting. If the length of the painting is $40 c m$ and its breath is $25 c m$ , what will be the cost of putting the border at $R s . 40 p e r m$ ?

Perimeter = $2 (l + b) = 2 (40 + 25) = 130 c m^{2}$
Rate = Rs 40 per m = Rs $\frac{40}{100}$ per cm
Cost = $130 \times \frac{40}{100} = 52$ Rs