Question

12. The side of a square field is 125 m. Find the cost of laying grass in it at 0.30 per square metre.​

Answer 1

Answer:

Correct option is

B

Rs.504000

Area of square field  =side2=(120 m)2=14400 m2  

cost of preparing a grass lawn =Rs 35/m2

 Total cost =14400×35Rs

                 =Rs 5,04,000

Answer 2

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

$\red{ \textsf{The cost of planting grass on the playground is \orange{Rs.4687.5 .}}}$

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

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

$\orange{ \textsf{Side of playground = 125 m }}$

$\orange{ \textsf{Cost of planting grass per m² = Rs.0.3}}$

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

$\orange{ \textsf{Area of Square = Side x Side}}$

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

$\red{ \textsf{Area of playground = Side x Side }}$

$\red{ \textsf{Area of playground = 125 x 125}}$

$\red{ \sf{Area \: of \: playground = 15625 \: {m}^{2} }}$

$\red{ \textsf{Cost of planting grass per m² = Rs.0.3}}$

$\red{ \sf{Cost \: of \: planting \: grass \: 15625 \: m² = 15625 \times 0.3}}$

$\red{ \sf{Cost \: of \: planting \: grass \: 15625 \: m² = Rs. \: 4687.5 }}$

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

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

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