Question

a rectangular wood is 25cm long,20cm broad and 15cm high.it is cut from all sides by 2.5cm.find the volume of the remaining solid.​

Answer 1

Answer:

3000 cm³

Step-by-step explanation:

STEP 1: Find the new length

Original Length = 25 m

Total length cut on both sides = 2.5 x 2 = 5

New Length = 25 - 5 = 20 cm

STEP 2: Find the new breadth

Original Breadth = 20 m

Total length cut on both sides = 2.5 x 2 = 5

New Breadth = 20 - 5 = 15 cm

STEP 3: Find the new height

Original Height = 15 m

Total length cut on both sides = 2.5 x 2 = 5

New Height = 15 - 5 = 10 cm

STEP 4: Find the new volume

Volume = Length x Breadth x Height

Volume = 20 x 15 x 10 = 3000 cm³

Answer: 3000 cm³

Answer 2

The original length (L) is given as 25 cm.

Total length , which is cut on both the sides=(2.5×2) cm=5 cm

Therefore , the new length=(25-5) cm=20 cm

Then, the original breadth (B) is also given as 20 m.

Total length,which is cut from both the sides=(2.5×2) cm=5 cm

Therefore, the new breadth=(20-5) cm=15 cm

Now, we have to find the new height:-

So, height (H)=15 cm

Total length, cut from both the sides=(2.5×2) cm=5 cm

Therefore, the new height=(15-5) cm=10 cm

Now, its volume=(L×B×H) cubic units

=(20×15×10) cm³

=3000 cm³

So, new volume=3000 cm³