Question

how many wooden cubical blocks of edge 20cm can be cut from a log of wood of size 8m by 5m by 80cm assuming there is no wastage

Answer 1

Answer is given in d above image attached. Refer to it.

Answer 2

Answer:

4000 cubical blocks

Step-by-step explanation:

Length of log = 8 m = 800 cm

Width of log = 5 m = 500 cm

Height of Log = 80 cm

Volume of log = $Length \times Width \times Height$

                         = $800 \times 500\times 80$

                         = $32000000 cm^3$

Now edge of cubical block = 20 cm

Volume of 1 cubical block = $Side^3$

                                           = $20^3$

                                           = $8000 cm^3$

So, number of cubical blocks Can be cut from the log = $\frac{32000000}{8000}$

                                                                                           = $4000$

Hence 4000 cubical blocks can be cut from a log of wood of size 8m by 5m by 80cm .