Question

A playground measures 300m by 170m Find the cost of planting grass on this at the rate of $80per Hector

Answer 1

Answer:

$480

Step-by-step explanation:

Area of 1 hectare = 100x 100m

area of field is 300x 170 = 51000m2

area of field/ area of one hectare 51000/10000

= 5.1 hectares

$80 per hectare x 5.1 hectares

= $480

Answer 2

$\bold{ \underline{ \red{SOLUTION \: \: }}}$ ➡

$\bold{Given,} \\ \\ \bold{Length \: \: of \: \: the \: \: playground = 300 \: m} \\ \\ \bold{Breadth \: \: of \: \: the \: \: playground = 170 \: m} \\ \\ \bold{So,} \\ \\ \bold{Area \: \: of \: \: the \: \: plaground = Length \times Breadth} \\ \\ \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (300 \times 170 )\: \: Sq.m} \\ \\ \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 51000 \: \: Sq.m}$

$\bold{We \: \: know \: \: that,} \\ \\ \boxed{\bold{1 \: Hector = 10000 \: Sq.m}}$

$\bold{Now,} \\ \\ \bold{ \: \: \: \: \: \: \: \: Given,} \\ \\ \: \bold{Cost \: \: of \: \: planting \: \: grass \: \: in \: \: 1 \: hector\: = Rs. \: 80 \: \: \: } \\ \\ \bold{So,}\\ \\ \bold{Cost \: \: of \: \: planting \: \: grass \: \: in \: \: 10000 \: sq.m = Rs. \: 80} \\ \\ \bold{ = > Cost \: \: of \: \: planting \: \: grass \: \: in \: \: 1\: sq.m = Rs. \: (\frac{80}{10000} )} \\ \\ \bold{ = > Cost \: \: of \: \: planting \: \: grass \: \: in \: \: 51000\: sq.m = Rs. \: (\frac{80}{10000} \times 51000) } \\ \\ \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = Rs. \: 408}$

$\bold{ \underline{ \red{ANSWER \: }}}$ ➡

$\boxed{ \bold{Cost \: \: of \: \: planting \: \: grass \: \: in \: \: the \: \: playground \: \: is \: \: Rs. \: 408}}$

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✝$\mathfrak{\red{THANKS....}}$ ✝