Question

the cos t of levelling a rectangular football ground is Rs .27,000 at the rate of Rs. 500 per Are . If the breadth of the ground is 60 b find its length .​

Answer 1

Answer:

24

Step-by-step explanation:

Surface area of floor=

costperm

2

totalcost

=

1.25

900

=720m

2

30× (width)=720m

2

width=24m

Answer 2

Answer:

The length of rectangular football ground is $0.9$ units.    

Step-by-step explanation:

Given : The cost of leveling a rectangular football ground = Rs. $27000$

           Leveling rate per metre square = Rs. $500$

           Breadth of ground = $60$

To find : Length of rectangular ground.

Solution :

• It is given that the cost of leveling a rectangular football ground = Rs. $27000$

           Leveling rate per metre square = Rs. $500$

           Breadth of ground = $60$

• We have to find the length of rectangular ground.
• To find the length, we have to first find the surface area of the rectangular ground.
• So, by dividing the cost of leveling a rectangular football ground by rate per meter square, we can get the surface area of rectangular football ground.

       ∴ Surface area of ground = $\frac{27000}{500}$

                                            = $54$ sq. unit

• Now, The formula for surface area of a rectangular ground is given by,

               Surface area of ground = Length*Breadth

                                               $54$  =  $60$*Breadth

                                        ∴ Breadth = $\frac{54}{60}$

                                                       = 0.9 units

• ∴ The length of rectangular football ground is $0.9$ units.