Question

Ques.-10 The cost of plastering a square wall at the rate of 24Rs. Per sq. m. 3456Rs.
Find the length of each side of the wall.​

Answer 1

Answer:

$\rm{are a \: of \: wall = \frac{total \: cost}{cost \: per \: {m}^{2} } }$

$= \frac{3456}{24}$

$= 144 {m}^{2}$

$\rm{area \: of \: square \: wall = 144 {m}^{2} }$

$\rm{ {side}^{2} = 144 {m}^{2} }$

$\rm{side = \sqrt{144} m}$

$\rm{side = \sqrt{12 \times 12} }$

$\rm{side = 12m}$