Question

a pit 7m long 5.8m wide and 4.2 m deep is dug.find the volume of the earthdug out. ​

Answer 1

Answer:

A pit 7 m long and 2.5 m wide.

Here..

Length of pit = 7 m

Breadth (width) of pit = 2.5 m

A pit which is 7 m in length and 2.5 m in breadth is dugged to a certain depth.

Let the -

Depth (height) of the pit be "h" m.

Also, given that Volume of pit is 28 m³.

Now,

Volume of pit = Volume of earth taken out

⇒ length × breadth × height = Volume of earth taken out

Substitute the known values in above formula

⇒ 7 × 2.5 × h = 28 ___ (eq 1)

⇒ 17.5 × h = 28

⇒ h = 1.6

∴ Depth of the pit is 1.6 m.

Verification

From above calculations we have h = 1.6

Substitute value of h in (eq 1)

→ 7 × 2.5 × 1.6 = 28

→ 28 = 28

Answer 2

Answer:

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Step-by-step explanation:

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