Question

how many rectangular pieces of wood of size 25cm by 20cm by10cm can be cut from a log of wood of size 3m by 1m by 50 cm, if there is no waste ?

(Hint :Convert metres into centimetre) ​

Answer 1

Answer:

300

Step-by-step explanation:

volume of rectangular pices of wood=$l*b*h=(25*20*10)cm^3=5000cm^3$

Since 3m =300cm , 1m =100cm

Therefore, volume of log of wood = $l*b*h=300cm*100cm*50cm=1500000cm^3$

Therefore, number of pieces of wood=$\frac{1500000cm^3}{5000cm^3}=\frac{300}{1} =300-ANS$

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Answer 2

Hii, let's Start.

$\rm\dag\large{\underline{\underline{Question:}}}$

How many rectangular pieces of wood of size 25cm by 20cm by 10cm can be cut from a log of wood of size 3m by 1m by 50 cm, if there is no waste ?

(Hint :Convert metres into centimetre)

$\rm\dag\large{\underline{\underline{Given:}}}$

Log of wood of Size

=3m by 10m by 50cm

$\rm\dag\large{\underline{\underline{Soluation:}}}$

$\rm\large{Now, \: frist \: we \: convert \: all \: meter \: into \: cm}$

$\rm\large{So, \: 3 \: \times \: 100 \: = \: 300 \: cm } \\ \\ \rm\large \: 1m \: = \: 100cm$

$\rm\large\pink\bigstar{\:So, \: number \: of \: rectangular \: piece \: of \: wood}$

$\rm \bf\large{ = \frac{Volume \: of \: wood}{ \: Volume \: of \: one \: piece}}$

$\rm\large = \frac{\:300 \times 50 \times 100}{25 \times 20 \times 10} \\ \\ =\rm\large \frac{1500000}{5000} \\ \\ = \rm\large \frac{300}{1}$

$\rm \bf\large\mapsto\red{\: 300}$

So, we can make 300 rectangular piece of wood.