Question

the length and breadth of a ground are 30 metre and 20 metre respectively find the cost of living the ground at the rate of rs 2 per sq.m​

Answer 1

ANSWER :

• If the length and breadth of a ground are 30 metre and 20 metre respectively, then the cost of living the ground at the rate of Rs. 2 per sq. m will be Rs. 1200.

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SOLUTION :

★ Given :-

• Length of the rectangular ground = 30 metre

• Breadth of the rectangular ground = 20 metre

• Cost of living the ground per sq. m = Rs. 2

★ To Find :-

• Cost of living the ground = ?

★ Required Formula :-

• ➭ Area of a Rectangle = Length × Breadth

★ Calculation of area of the ground :-

We have,

• Length, l = 30 m

• Breadth, b = 20 m

$\sf{ \therefore \: \: Area \: \: of \: \: the \: \: ground = l \times b } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf{= 30 \: m \times 20 \: m } \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf{= 600 \: sq. \: m }$

❒ Calculation of the cost of living the ground :-

$\sf{ \bigstar \: \: Cost \: \: of \: \: living \: \: the \: \: ground \: \: in \: \: 1 \: \: sq. \: m = Rs. \: 2} \: \: \: \: \: \: \: \: \\ \\ \: \: \: \: \: \: \: \sf{ \therefore \: Cost \: \: of \: \: living \: \: the \: \: ground \: \: 600 \: sq. \: m = Rs. \: (2 \times 600) } \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf{= Rs. \: 1200}$

$\underline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }$

MORE TO KNOW :

➤ Rectangle :-

• ➭ A rectangle is a plane figure which has four sides and four angles. Each of the four angles are right angles, i.e, 90°. Again, the opposite sides of a rectangle are of equal length and parallel.

• ➭ Area of a rectangle = Length × Breadth

• ➭ Perimeter of a rectangle = 2 (Length + Breadth)

Answer 2

$\fbox \purple{Given}$

• Length of the rectangular ground = 30 m
• Breadth of the rectangular ground = 20 m
• Cost of living the ground per sq. m = Rs. 2

$\fbox \pink{To find}$

• Cost of living the ground = ?

$\fbox \red{Area of rectangle=Length× Breadth}$

$\fbox \purple{Calculation of ground:}$

We have,

• Length, l = 30 m
• Breadth, b = 20 m

Area of the ground=l×b

=30m×20m

=600sq.m

$\fbox \pink{Calculation of the cost of living the ground :-}$

Cost of living the ground in 1 sq.m=Rs.2

Cost of living the ground 600 sq.m=₹2×600

=₹1200

$\fbox \green{Know about some formulas related to rectangle:}$

|->Area of a rectangle = Length × Breadth

|-> Perimeter of a rectangle = 2 (Length + Breadth)

$\fbox \blue{ハンはジャクソンが大好き}$