Question

The area of a courtyard is 3750m2. Find the cost of covering it with gravel to a height of 1cm if the gravel costs Rs 6.40 per cubic metre

Answer 1

Solution:-
Area of the courtyard = 3750 sq m.
Height of the gravel = 1 cm or 1/100 m = 0.01 m
Now,
Volume = Base area × Height 
= 3750 × 0.01
volume = 37.5 cu m
Now, cost of 1 cu m of gravel = Rs. 6.40
Total cost of gravel = 37.5 × 6.40
Total cost of covering the courtyard with gravel of 1 cm height = Rs. 240
Answer.

Answer 2

Answer:

Step-by-step explanation:

⇒Area of the courtyard = 3750 meter square

⇒Height to which the gravel has to be covered = 1 centimeter

⇒Cost of covering the land with gravel = Rs 6.40 per cubic meter

⇒1 cm = 1/100 meter

⇒∴1 cm = 0.01 meter

∴ Volume = Length x Breadth x Height

                =  3750 x 0.01         (∵ Area = Length x Breadth)

                =  37.5 meter cube

⇒Cost of covering the ground = 37.5 x 6.40

                                                   = Rs 240

Hope It Is Helpful!!