Question

a rectangular ground is 90m long and 32m broad in its centere there is a circular tank of radius 14m find the cost of remaining portion at the rate of 2.50 per m^2

Answer 1

Hey There!


$area \: of \: whole \: ground = (90 \times 32) {m}^{2}$
$= 2880 {m}^{2}$


$area \: of \: circle = \pi \times {r}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{22}{7} \times 196$

$= 616 {m}^{2}$

Now,

$area \: of \: field \: excluding \: circle = (2880 - 616) {m}^{2}$

$required \: area = 2264 {m}^{2}$

Hence,

$total \: required \: cost = (2.50 \times 2264)$

₹ 5660 will be required for furnishing of remaining portion of the field excluding circle.









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