Question

a pit of dimension2.5m×2.5×4.5m is dug at the rate of rs 15 per cubic meter.find the cost of the digging the pit ​

Answer 1

Answer:

Answer:

Cost of digging = Rs. 421.87

Step-by-step explanation:

Given:

Length of cuboid pit = 2.5 m

Breadth of cuboid pit = 2.5 m

Height of cuboid pit = 4.5 m

To Find:

Find the cost.

Now, firstly we will find volume of cuboid pit.

⇒ Volume of cuboid = lbh

⇒ Volume of cuboid = 2.5 × 2.5 × 4.5

⇒ Volume of cuboid = 28.12 m³

Now, cost of digging of 1 m³ = Rs. 15

So, cost of digging of 28.12 m³ = 28.12 × 15

Cost of digging of 28.12 m³ = Rs. 421.87

Answer 2

Answer: 421.875

Step-by-step explanation:

volume of cuboid = l x b x h

volume of pit = 2.5 x 2.5 x 4.5

=28.125 metres ³

cost per 1 metre³ = 15

cost per 28.125 metre³ = 15 x 28.125

=rs. 421.875