Question

A field measures 300m by 200m.Find the cost of planting grass on this at the rate of ₹80 per hectre.​

Answer 1

Answer:

To find the cost of planting grass we have to find area of the field so

Area of field =l×b

=300×170=51000 square

Now convert into hectare

It will be 51000/10000

As 1 hectare=10000m sq

So area field =5.1 hectare sq

Now cost = 5.1 x0.80 p

=

0.408 p

Answer 2

$\huge \purple{ \underline{ \boxed{ \red{ \mathbb{ANSWER : }}}}}$

$\red{ \textsf{The cost of planting grass on the playground is \orange{Rs.480 .}}}$

$\huge \purple{ \underline{ \boxed{ \red{ \mathbb{EXPLANATION : }}}}}$

$\large\green{ \underline{ \underline{ \mathbb{GIVEN : }}}}$

$\orange{ \textsf{Length of playground = 300 m }}$

$\orange{ \textsf{Breadth of playground = 200 m }}$

$\orange{ \textsf{Cost of planting grass per hectare = Rs.80}}$

$\large\green{ \underline{ \underline{ \mathbb{FORMULA \: USED : }}}}$

$\orange{ \textsf{Area of rectangle = Length x Breadth}}$

$\orange{ \sf{1 \: hectare = 10000 \: {m}^{2} }}$

$\large\green{ \underline{ \underline{ \mathbb{SOLUTION : }}}}$

$\red{ \textsf{Area of playground = Length x Breadth}}$

$\red{ \textsf{Area of playground = 300 x 200}}$

$\red{ \sf{Area \: of \: playground = 60000 \: {m}^{2} }}$

$\red{ \sf{Area \: of \: playground = 6\: hectare }}$

$\red{ \textsf{Cost of planting grass per hectare = Rs.80}}$

$\red{ \sf{Cost \: of \: planting \: grass \: 6 \: hectare = 6 \times 80}}$

$\red{ \sf{Cost \: of \: planting \: grass \: 6 \: hectare = Rs. \: 480 }}$

$\large \green{ \underline{ \underline{ \mathbb{KNOW \: MORE : }}}}$

$\orange{\mathbb{AREA : }}$

The area is the measurement of space enclosed by a closed geometric figure .

$\orange{ \mathbb{HECTARE :}}$

The hectare is a non-SI metric unit of area equal to 10,000 m² .