Question

How many wooden blocks of size (22x10x7)cm are required to make a wooden partition of 11m x 3.5m x 40cm , if the glue and filling material used occupies one-tenth of the wooden partition.

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Answer 1

Answer:

9000

Step-by-step explanation:

Wooden blocks:

Length of wooden block = 22 cm.

Breadth of wooden block = 10 cm.

Height of wooden block = 7 cm.

Volume of wooden block = Length * Breadth * Height

                                           = 22 * 10 * 7

                                           = 1540 cm³

Wooden partition:

Length = 11 m = 1100 cm

Breadth = 3.5 m = 350 cm

Height = 40 cm

Volume of wooden partition = Length * Breadth * height

                                               = 1100 * 350 * 40

                                               = 15400000 cm³.

Given that glue and filling material used one-tenth of wooden partition.

= 15400000 * (1/10)

= 1540000.

Now,

= 15400000 - 1540000

= 13860000 cm³

∴ Wooden blocks = 13860000/1540

                              = 9000.

Therefore, Number of wooden blocks = 9000.

Hope it helps!